Crank definition slang refers to the informal meaning of the word “crank” as it’s used in everyday conversation rather than its literal, mechanical sense.

In modern slang, “crank” most commonly refers to methamphetamine, a term that became popular in underground and street culture due to the drug’s stimulating, high-energy effects.

Outside of drug-related contexts, “crank” can also describe someone who is irritable or grumpy (a “cranky” person), or it can mean to hype something up, as in “crank up the music.”

The exact meaning depends heavily on context, tone, and the community using the term, so it’s important to consider the surrounding conversation.

Quick Table

Meaning	Context	Example Usage
Methamphetamine	Drug slang	“He’s been using crank for years.”
Irritable/grumpy person	Mood/personality slang	“Don’t be such a crank today.”
To hype or intensify	Music/energy slang	“Crank up the volume!”
Eccentric or odd person	Older slang usage	“He’s a real crank about his routines.”
To start/operate	Old mechanical slang (origin)	“Crank the engine to start it.”

The Day I Finally Understood “Crank” Slang

So a couple months back I was at my regular gym, minding my own business on the treadmill, when I overheard two teenagers talking near the free weights.

One of them said something like “bro was cranking 90s all game” and the other one just nodded like that made total sense.

I had zero idea what that meant. Cranking? Nineties? I genuinely thought maybe they were talking about a car or an old radio station.

Turns out “crank” is one of those slang words that means about five completely different things depending on who’s saying it, where you heard it, and how old they are.

I went down a bit of a rabbit hole after that gym day, texting my nephew, scrolling Urban Dictionary, and asking around, and I figured I’d just lay out everything I learned in one place.

If you’ve ever heard “crank” used in a way that made zero sense, this should clear it up.

The Gaming Meaning: “Cranking 90s”

Let’s start with the one that sent me down this whole path.

If you’ve got a kid or younger sibling who plays Fortnite, “cranking 90s” is basically the phrase that started popping up around 2018-2019 and never really left.

It refers to building three walls in quick succession (a “90”) to gain height fast during a firefight, giving you cover and the high ground on your opponent.

“Crank” in this context just means doing it fast and repeatedly, almost like turning a crank handle rapidly.

My nephew showed me a clip of a streamer doing it and honestly it was kind of mesmerizing, like watching someone play a really fast piano riff except it’s staircases made of metal.

If your kid says “I was cranking on him,” they mean they were building aggressively and probably won the fight. Nothing to worry about there, it’s just gaming lingo.

The “Cranky/Odd Person” Meaning

This is probably the meaning most people over 40 already know. A “crank” is an old-school word for someone who’s grumpy, irritable, or has weirdly strong opinions about small things.

My own grandfather used to get called “an old crank” by my grandmother whenever he complained about the thermostat being one degree off. It’s not really an insult, more like an affectionate jab.

You’ll also hear “crank” used to describe someone who believes in fringe or debunked ideas, like “that guy’s a total crank about flat earth stuff.” In this sense it basically means someone who’s stubborn about a weird belief that most people don’t buy into.

The Music and Volume Meaning

Another one I ran into is “crank it up,” which just means turn the volume way up. This one’s been around forever, going back to actual hand-crank machinery where turning a lever increased power or speed.

So when someone says “crank the music,” they just want it louder. Simple as that. You’ll hear this a lot at parties, in cars, or from a coach hyping up a team before a game.

There’s also “that song cranks,” which is a newer twist meaning the song is really good or has a lot of energy.

Kind of confusing that “cranks” as an adjective for a song and “crank it up” as a verb for volume both exist, but context usually makes it obvious which one someone means.

The Fitness Meaning: “Crank Out Reps”

If you’ve spent any time at a gym or watched fitness content on YouTube or Instagram, you’ve probably heard a trainer say something like “crank out ten more reps” or “let’s crank through this last set.”

Here “crank” just means to push through and complete something quickly or with effort, usually when you’re tired and don’t really want to.

I hear this constantly from my own trainer, usually right when my legs are already shaking from the last set, which feels a little cruel timing-wise but I get the motivational intent.

The Slang for Methamphetamine

This is the meaning I want to be upfront and careful about, because it does exist and it’s important to know it if you’re a parent, teacher, or just someone trying to understand slang your kid or a friend used.

“Crank” has historically been used as street slang referring to methamphetamine, a highly addictive and dangerous illegal drug.

The term reportedly comes from how the drug was sometimes smuggled inside motorcycle crankcases decades ago, though the exact origin story varies depending on who you ask.

If you ever hear “crank” used in a context that seems off, like discussing getting or using something rather than gaming, music, or general attitude, it’s worth paying attention to the full conversation.

This meaning is serious and very different from the playful uses above.

If this comes up with someone you care about and you’re worried, it’s genuinely worth having an honest, non-judgmental conversation rather than jumping straight to accusations, since context matters a lot here.

The “Crank Call” Meaning

Growing up, “crank call” was the term for a prank phone call, usually to a stranger or a friend, where you’d disguise your voice and say something ridiculous before hanging up laughing. This one’s been around since landlines were the only phones that existed.

I definitely made a few of these as a kid using my mom’s cordless phone, and got caught exactly once when I called the same pizza place twice in one night and they recognized my voice.

Lesson learned: vary your bits if you’re going to crank call someone, don’t reuse material.

This meaning has faded a bit with caller ID and smartphones making it harder to stay anonymous, but you’ll still hear “crank call” used, especially by anyone over 30 reminiscing about childhood mischief.

How to Actually Figure Out Which Meaning Someone Means

Since “crank” can mean so many different things, here’s the quick way I sort it out now when I hear it:

1. Check the setting. Gym conversation likely means reps or attitude. Gaming conversation likely means Fortnite building. Party or car conversation likely means volume.
2. Listen for the object of the sentence. “Crank the music” is about volume. “Cranking 90s” is gaming. “He’s such a crank” is about personality. “Crank call” involves a phone.
3. Pay attention to tone and context around drugs. If the conversation involves getting, using, or hiding something, and nothing about music, games, or attitude fits, it’s worth taking seriously rather than assuming it’s harmless slang.
4. When in doubt, just ask. I know it feels awkward, but literally just saying “wait what do you mean by crank” saved me from a lot of confused nodding along. Most people are happy to explain slang, especially to someone clearly trying to actually understand rather than judge.

Common Mistakes People Make With This Word

A few things I noticed people (myself included) get wrong:

• Assuming every use of “crank” is either totally harmless or automatically drug-related. Neither assumption is safe; context is everything.
• Using “crank” sarcastically around older relatives thinking it means annoyed, when they might take it as calling them literally cranky.
• Mixing up “crank” the noun (a grumpy person) with “crank” the verb (to increase or push through something). They’re grammatically different and mixing them up in a sentence just sounds off.
• Not realizing gaming slang evolves fast. “Cranking 90s” was massive a few years back and has already shifted somewhat as building mechanics changed in newer Fortnite seasons, so even gaming slang isn’t static.

FAQ’s

What does “crank” mean in slang?

In slang, “crank” most often refers to methamphetamine, though it can also describe a grumpy person or mean to intensify something, like turning up music.

Is “crank” always drug-related slang?

No. While “crank” is widely known as slang for meth, it’s also used casually to describe someone irritable (“he’s a crank”) or to mean amping something up (“crank it up”).

Where did the slang term “crank” originate?

The drug-related meaning is believed to come from the physical “cranked up” or energized feeling users experience. The mechanical sense (to crank a machine) predates this and influenced later figurative uses.

How do you know which meaning of “crank” is being used?

Context is key. Tone, surrounding words, and the setting (conversation, music, personality description) usually make the intended meaning clear.

Is calling someone a “crank” offensive?

It can be mildly insulting, implying the person is grumpy, stubborn, or eccentric, but it’s generally considered informal rather than a serious insult.

Conclusion

The crank definition slang carries several meanings depending on context, making it a versatile but sometimes confusing term.

Most commonly, it’s used as slang for methamphetamine, particularly in drug culture and street conversation.

However, “crank” isn’t limited to this single meaning — it’s also used to describe someone who’s irritable or difficult, often shortened from “cranky.”

In more casual or musical contexts, “crank” can simply mean to increase intensity, such as cranking up the volume or energy of a situation.

Understanding which meaning applies requires paying attention to the surrounding conversation, tone, and setting, since the word shifts significantly between drug slang, personality descriptions, and everyday hype language.

Whether you’ve come across “crank” in a song lyric, a conversation about mood, or a discussion involving substance use, recognizing these different layers helps you interpret the term accurately.

As slang continues to evolve across communities, staying aware of context remains the best way to understand exactly what someone means when they use the word “crank.”