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L:laffin
M:mah
A:ass
O:off
when sumone says sumthin so funny online and u cant even show dem how. .now u can

halo234: HAHAHAHA. . .LMAO!!!!
L.M.A.O by +gOOsE+ September 20, 2003

l.m.a.o.s.h.m.s.f.o.m.h.a.i.d.m.t. 

Laugh my ass off so hard my sombrero fell of my head and I dropped my taco.
Steven told a joke and Brenda replied with l.m.a.o.s.h.m.s.f.o.m.h.a.i.d.m.t.

And they all laughed! THE END!!!

r.o.f.l.m.a.o 

Rolling On Floor Laughing My Ass Off
tht was soooooooooooooooooo funny i was r.o.f.l.m.a.o
r.o.f.l.m.a.o by alex rees March 7, 2007

R.O.F.L.M.A.O.S.P 

rolling on floor laughing my ass of scaring people
did u see the guy who has a mangina! I R.O.F.L.M.A.O.S.P 'd so hard!!!! how the fuck does he have sex?
R.O.F.L.M.A.O.S.P by neobomb3r April 25, 2011

l.m.f.a.o 

Laughing My Fucking Ass Off. A term used when you are in tears from laughter. Used mostly on instant messaging.
Ben: I did the stupidest thing last nite, i was running down the street with Alex and I ran straight into a pole, i ran so hard i think i dinted it!

Kyle: U are such an idiot. l.m.f.a.o!
l.m.f.a.o by Jessie_xxx November 21, 2005

L.M.F.A.O. 

an abbreviation for saying: LAUGHING MY FUCKIN' ASS OFF
HAHAHAHA. that was very funny. L.M.F.A.O.
L.M.F.A.O. by Diego Delgadillo November 11, 2006
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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