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13.
Commonly mistaken to mean 'cracking the fuck up, cracks the fuck up, etc.' In reality, it means the same as 'stfu' (shut the fuck up) but 'shut' is replaced with 'chut'. Used mostly by those of Asian descent when 'chut up' isn't dramatic enough.
Boy: "I think your sneakers suck."
Girl: "Chut up!"
Boy: "Sorry, but your sneakers suck."
Girl: "I said ctfu!"
by Cherita1 October 31, 2010
 
1.
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
 
2.
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
 
3.
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
 
4.
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
 
5.
cracking the fuck up
Person #1: wacka wacka wacka wacka wacka
Person #2: ctfu
by Cameron R April 14, 2008
 
6.
a word that only black girls use in a fight on facebook
ctfu , whateva make yu feel gud abut yurslef girll lls.
by whitechick<3 September 19, 2010
 
7.
Capture The Fucking Urinal
facebook Status: "CTFU"

Comment: "CTFU: Capture the FUCKING Urinal"
by NOyourmad January 08, 2012