LMFAOBOTC 

Stands for Laughing My Fucking Ass Off, Biting On The Carpet

OMG oh, the hilarity, LMFAOBOTC!

LMFAOBOTC by Skizla April 28, 2006

LMFAOFOCROFPML 

Laugh My Fucking Ass Off Fall Off Chair Roll On Floor Piss Myself Laughing. Unbelievable hilarity has ensued, the type you'd normally experience during an episode of Family Guy.

LMFAOFOCROFPML by OCE November 2, 2003

LMFAOBTWTFF 

Laughing my fucking ass off because that was too fucking funny!

Fernie:> Dude, shoulda been here. Josie Rosie just tbagd that dbag xbf of Monica's

Eddie:> LMFAOBTWTFF! FTP!

LMFAOBTWTFF by The Original Shoebrush April 30, 2009

LMFAOROTF 

Laughing My Fucking Ass Off Rolling On The Floor

Entered when texting, chatting or e-mail as: LMFAOROTF

LMFAOROTF by Central Texas Dude July 20, 2010

LMFAOBT

Stands for Laughing my F*cking ass off big time

Me: hey did you see that biatch picking her nose, I thought she was gonna pull out her brain?

Friend: Yeah, I was LMFAOBT at her, she was a dumb ass, so her brain would have come out easily through her nose.

LMFAOBT by paulusthewalrus June 19, 2010

LMFAOAOTFFTIFE

Laugh My Fucking Ass Off All Over The Fucking Floor Til I Fucking Explode. It is used when you read something really funny while instant messageing

Billy says:
Last night I gave my girlfriend an Alaskin Firedraggon. It was awesome, but she dumped me..
Jim says:
LMFAOAOTFFTIFE!!!

LMFAOAOTFFTIFE by Nunchanto March 15, 2007

LMFAOBOAT 

laughing my ass off + boat = LMFAOBOAT

wait, so there's ROFLCOPTER and LOLLERCOASTER then what's lmfao? LMFAOBOAT!!!

LMFAOBOAT by P33nChristine May 10, 2007