Horrified person: Holy moly! That dude has two caterpillars on his upper lip!
Slightly less horrified person: Nah mate, he's got a bi-mo, it's for Movember
Slightly less horrified person: Nah mate, he's got a bi-mo, it's for Movember
by AardvarkOz December 10, 2007

"Ugh, that guy is such a bi-mo!"
Tim: I'm bi-mo now.
Billy: Huh? What happened to being a gay goth?
Tim: Gay goth? That is so last Thursday!
Billy: Right...so when did you decide you liked sex with girls? And what's the difference between a goth and an emo anyway?
Tim: Sex with girls? Eeeeww!!
Tim: I'm bi-mo now.
Billy: Huh? What happened to being a gay goth?
Tim: Gay goth? That is so last Thursday!
Billy: Right...so when did you decide you liked sex with girls? And what's the difference between a goth and an emo anyway?
Tim: Sex with girls? Eeeeww!!
by el_llama July 24, 2008

A prison term used to totally diss another inmate. Bi-polar referring to someone on medications (usually psychotropic) and rat mo meaning an informant, child molester.
by peteymoto October 26, 2005
