lmfsao 

laughing my fucking sexy arse off

person 1)look he fell out of a tree
person 2)lmfsao

lmfsao by luca_woz_ere October 3, 2006

LMFSAO 

L-Laughing;M-My;F-Fat;S-Samoan;A-Ass;O-Off

She Sedd LMFSAO

LMFSAO by Samoan_POWERRR(((: November 21, 2010

lmfsao 

Laughing My Fuckin Skinny Ass Off

Mariana Stelianou, Emily Feilds, and Sally Sales are perfect examples

lmfsao by Mar mar August 2, 2004

lmfaotic system 

when your lymphatic system is lmfao

Eddy: I just got a 26/40 on the physics test
Joe: Lmfaotic system

lmfaotic system by AlbertiBass November 8, 2018

LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE 

How an extra mf types LMFAO

* something funny *
Her extra ass : LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE

LMFAOAOAOSOAOAOAHSNEKNSHDOSNEBKSOWOSHSHDNEKLWMEHRIDJE by Starship470 March 14, 2019

Lmfao 

Is known as a Chinese hacker who works for the koreans. he's also known to partner with lmbao

LMFAO, he's a Chinese hacker

Lmfao by Communist_comrade/69420 June 3, 2020

LMFAO 

A laugh so powerful that it's basically saying that you laughed your ass that was fucking so much that your ass literally fell off.

Guy 1: Yo look at this meme!
Guy 2: LMFAOOOOOOOOOOOOOOOOO
Guy 1: Uhhhmmm.. yeah that was funny and all but why are there literally 2 giant pair of cheeks rolling across the floor now..?

LMFAO by warp_d June 25, 2022