lmmffao 

Laughing My Mother Fucking Ass Off. Another form of lmao and lmfao used exclusively on the internet.

Bill: Well I told him 'Your Mamma is so dumb she thinks sqaure roots are vegetables!'

Ted: LMMFAO

lmmffao by Simple Sam February 7, 2005

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

lmffaoomgialmfaoshrn 

Laughing my fat fucking arse off. Oh my god, I am laughing my fat arse off so hard right now!

What a funny joke you just made. Lmffaoomgialmfaoshrn.

lmffaoomgialmfaoshrn by Rest Synth February 7, 2020

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

Lmffao 

Laughing my fucking flat ass off
This one is for all u flat booty bitches who aree sick and tired of people teasing u for using lmao and having no ass

Omgg this vid is so funny lmffao

Lmffao by Epicureanhoe April 16, 2020