lmsmfao 

Laughing my sweet mothafuckin ass off

TOM: "I just saw Gigli. I thought it was the best movie ever"
JIM: "lmsmfao"

lmsmfao by Robby Right November 7, 2006

LMMFAOWWDAACMBALAK 

Laughing my motherfucking ass off while watching drama alert and clenching my ballsack and looking at keemstar

Keemstar: LETS GET ROOOOOOOIGHT INTO THE NEWS!
Guy: LMMFAOWWDAACMBALAK

LMMFAOWWDAACMBALAK by CurtisDoingCrack May 17, 2016

LMMFAO 

Laugh My Mother Fucking Ass Off - Normally used online when one laughs so hard s/he has to use acronyms... Associated with lmao and rofl...

Mel: OMFG, guess what!!!
Joe: What?!!?!??!
Mel: My cat fell into the toilet. :(
Joe: LMMFAO!!!

LMMFAO by Melfina March 26, 2004

lmmfaosfhibmmff 

laugh my mother fucking ass off so fucking hard i broke my mother fucking foot.

That was hilarious! lmmfaosfhibmmff!

lmmfaosfhibmmff by Chunkymanwithabs47 October 20, 2010

lmmfao 

Laugh My Mother Fucking Ass Off. Similar to "lmao," or "lmfao," but instead of "Laugh My Ass Off," or "Laugh My Fucking Ass Off," it adds the impact with "Mother".

Mike: "So the dog walked itself home, ate a pizza, and took a nap."

Joe: "LMAO!"

Peter: "LMFAO!"

Scott: "No dudes, LMMFAO."

lmmfao by #1newboyzgroupie August 6, 2011

lmmfao 

laughing my mother fucking ass off
(when u feel that lmfao isnt enough)

guy1: Q:why did the toilet paper roll down the hill?
A: because it wanted to get to the bottom

guy2: LMMFAO!

lmmfao by muhlio November 19, 2007

LMMFAO4R 

Stands for Laffing My Motha ****in Ass Off For Reals. Rising abbr on youtube.

the joke made me lmmfao4r.

LMMFAO4R by Dylankro December 2, 2009