crackin up 

Laughing ya ass off, synonim to rolling on the floor laughing

-Yo check out the jokes in that mag!
-They're off the hook i'm already crackin up

crackin up by Muscu May 17, 2006

wahts crackin' up en da hizza, my nizzle 

BLACK-(just what it means)
WHITE-(Hello, how are things in the town, my african american friend)

u really need a definition?

wahts crackin' up en da hizza, my nizzle by motherfuckin nigga, fosho March 27, 2003

Crackin myself up 

Means when, you say a joke so funny that even you have to laugh, even if you are the only one. Though it's kinda lame laughing with yourself, but, you just cant help yourself :)

haha, knock knock, whos there? boo..boo who?
ohh dont cry its only a joke...HAHAHA

ohh i love crackin myself up

Crackin myself up by LBK:) June 24, 2009

cracking up

Bursting into a prolonged fit of intense, uncontrollable laughter. Instigating this sort of reaction in someone is called "Cracking that person up."

John told me a hilarious joke the other day and I started cracking up.

cracking up by lollylollylollyPOP!!! July 24, 2009

cracking up

laughing mad hard. Almost to the point of crying. Laughing you split ends off. more than giggleing or laughing

Guy 1: hey, whats wrong wiff aly?

Guy 2: Oh we where talking about how disgusting Michelle's nose is and then she started cracking up

cracking up by Petrusha July 1, 2008

cracken up 

1. When someone or a group of people are cracking up they are laughing hysterically, non-stop, and they might even be laughing so hard that they are crying b/c it is so funny.

Did I tell you what happened the other day? This woman was in the elevator with me and Tom, and she farted. Dude! it was an SBD! You could barely hear it, but I knew it wasn't me, and Tom looked at the lady in front of us - like eeeeeeew! I couldn't wait to get out of that elevator; it was so bad that it burnt the hair in my nostrils! We were cracken up about that all freakin' day! I still can picture her hahahaha! TFF!

cracken up by IrishDaddy2U April 14, 2010

cracking up

when you cracking up it means you laughing so hard at stupid and retarded shit people say or be doing....and most of the time people is hating you so badly and want to sabotage everything you do and be so evil to you because you so far out their league they cant stand it. and do everything to bring you down and always end up in prison forever or dead the worst way possible like being burn alive.

im cracking up

cracking up by Megasus Thirst Jesus Christ April 22, 2022