l.m.a.o. 

It means laughing my ass off.

That was so funny!!! I'm l.m.a.o.

l.m.a.o. by Tina June 17, 2006

L.M.A.O 

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!!!

l.m.a.o.s.h.m.s.f.o.m.h.a.i.d.m.t. by WeridGirl101 June 27, 2016

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