look up any word, like bae:
 
1.
"Laughing my crazy butt off"
Lmcbo= laughing my crazy but off
by dumbblondegirl11 March 09, 2014
 
2.
Laughing My Cow Bell Off!

A parody of the texting abbreviation for lmao (laughing my ass off) used in the facebook user group "I gotta have more cowbell."

Funny way to let the person you are texting with know that you think what they said was not just comical but hilarious!
texter 1. Why did the cookie go to the hospital?
texter 2. I don't know why did the cookie go to the hospital?

texter 1. Because she felt crummy!
texter 2. LMCBO!!!
by mortgagecommitments March 30, 2010