lmfao 

An acronym for; Laughing My Fat Ass Off.

Similar to LMAO except the additional F.

hahahahahahahahaha!!!!!!! LMFAO!!!

lmfao by awesume-dude November 16, 2010

lmfao 

1.stands for Laughing My Fucking Ass Off
2.the famous american electro pop duo (Redfoo and SkyBlu)

-Hey, do you know LMFAO?
-Yes, they rock!

lmfao by Nuke's Lab December 4, 2011

LMFAO 

1)Laughing my fxckin' ass off
2)Loving my fingers all over

1)HAHA, LMFAO.
2) OH BABY, LMFAO. bleh

LMFAO by Irving February 21, 2004

LMFAO 

Laughing my farting ass off.

LOL. But really it means:

Laughing my fucking ass off.

NeedALifeGirl1: The other day I was shopping at the childrens place..

NeedALifeGirl2: lol.

NeedALifeGirl1: and OMG. a little gurl was making fun of me. ugh

NeedALifeGirl2: LMFAO.
NeedALifeGirl1: STFU
NeedALifeGirl2: u know im joking..
NeedALifeGirl1: LMFAO. kk.

LMFAO by LMFAOuser February 16, 2010

LMFAO 

Laughing My Fucking Ass/Arse Off. Use in the same context as lol, rofl and haha.

Also a Music Duo with skyblu and redfoo.

Person 1: I was walking across the street and an old lady offered to help me across he road. What the hell!?

Person 2: LMFAO, why?

LMFAO by AmazingToastMan March 1, 2016

LMFAO 

The most party rockin band ever!! No one could ever compeat.
The two cool guys who leaad the band are Redfoo and Skyblu.

Awesome person: Hey did you see LMFAO's new music video?

Lame guy: who is LMFAO..?

Awesome person: ..*huge gasp*

LMFAO by Chubaca's love child September 25, 2011

lmfao 

Laugh my fly ass off .. lolx

ant:That chick looks like you.
Jevaughn: lmfao

lmfao by Jevaughn October 14, 2007