Top Definition
Cracks the Fuck Up. When laughing so hard you can hardly breathe.
When someone does or says something completly and utterly funny, ridiculous or stupid.
by lourdes April 25, 2005

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Cracking the fuck up *used online only*
Selena was ctfu when she read the joke on Google

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Soft and offensive. Just like you.

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Crackin The Fuck Up
bbyVee : You Funny As Shit, CTFU !

bbyNia : Bitch, Im Not Even Half-Way Through Wat Happened Yet, And You Already Think Shit Funny ! CTFU ,
by BeeeeJayeee May 16, 2010

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Cowboy the fuck up
I hear my knee

Ctfu and let's get moving
by John dorians polare August 05, 2015

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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CTFU means “carb the fuck up.”
Durian Rider (author of CTFU): “Eat more to live more. Carbs are your friend. Every fucking meal: carb the fuck up!”
by Max Sievers January 16, 2015

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The Urban Dictionary T-Shirt

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A laughing acronym standing for "crack(ing) the fuck up" similar to lmao or rofl. Primarily used by black people on myspace and facebook.
*Jaquon posts a funny/gangsta picture on facebook*
Tarrell: Yo dat shits drawlin ctfu!
by Anonymousesketeer May 14, 2010

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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Used in texting, email, blogs, etc, its short for Cracking The Fuck Up;
Laughing really hard,
Bob: what do you call a dead blonde in a closet
Tom: I don't know, what do you call her?
Bob: Last year's hide-n-go-seek champion!
Tom: hahaha ctfu good one.
by LinaBeana June 10, 2010

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt