look up any word, like plopping:
 
1.
Laughing my Face off.
That shit was so funny I was LMFO!!!
by StoneGrody September 11, 2006
 
3.
Laughing my face off.
Bob-So I was like "hey baby, can I buy you a drink?" And she was like "only if I can throw it in your face!"

Me-LMFO
by Lovesickduck December 12, 2010
 
4.
Laughing my fucking off.

A stupid misspelling of Laughing my fucking ass off.
Omg lmfo school got cancelled.
by LGTexty August 02, 2012
 
5.
Laughing
My
Fucking
Orange
Sideways
LMAO < LMFOS.
APPARENTLY THIS HAS TO BE 20 LETTERS AND 3 WORDS SO IM JUST GONNA TYPE BOLLOCKS K?
its to be used on da internttttt innnnittttz\zzzzzzzzzzzzz.
steffo is ma twin bbz<3

LMFOS.
see?
SIMPLE.
by becko&steffo2k7. May 07, 2007
 
6.
Chat lingo for Laugh My Fuck Off. Let's chatters use there imagination when chatting, instead of having a direct meaning like LMFAO, for each person a fuck could be something else.
e.x:

chatter1- did see what that guy did in the pizza place?
chatter2- ya! i was like LMFO
by hellothere242 January 08, 2010
 
7.
New Net slang for people who do not enjoy cursing. Meaning Laughing My Face/Foot (whichever you like) Off. I suggest Face.
Lmfo.. Layluhh that is SO funny.
by Andreuhh January 06, 2007