lmbo 

before it meant "laughing my butt off"
but now the meaning has changed to "laughing my BOOBS off"

guy: that was so funny
girl: yeah i was lmbo (laughing my boobs off)!

lmbo by Plaidtastic January 1, 2009

lmbo 

when you laugh so hard your balls shake and then fall off

chapelle is a funny fuck
yeah remember when he did rick james
lmbo

lmbo by i luove titties March 1, 2005

LMBO 

LMBO (Laugh My Balls Off)

I get a text or read something from a social network that is funny, I reply LMBO Laugh(ing) My Balls Off

LMBO by Don Domino June 1, 2011

lmbo 

laughing my batty off, a jamaican way for saying lmao.

I got a ruff foot job mon, her soles was crusty, lmbo!

lmbo by Shotta di badman April 14, 2006

lmbo 

stands for "Laughing My Boobs Off"..usually used by : camwhores, Paris Hilton, ur mom...

Conversation between Crystal and Bitchy_anal_pleasure1456:
-..and then i wuz like full of his assfuckin cum!!
-lmbo!!!

lmbo by EPIC sound March 15, 2009

lmbo 

A "better" alliteration for 'laughing my ass off', 'laughing my butt off' is used so when your Nun comes over and steals your phone, you are saved.

-Nun picks up kids phone-
Haha! Oh, Christian, lmbo! You are too funny : ) !
...You may continue txting for your correct language. -Glare-

lmbo by NeenjaKeeten29 April 10, 2010

lmbo 

Laughing my Balls Off

jon: did you hear what Corinne said about the donkey?
amanda: yeah, lmbo!

lmbo by cooooolllcat! June 19, 2010