1 definition by polaus2

UCB
an acronym for "under cover bitch" used to describe someone who acts nice in front of you, but is a bitch behind your back.
"Did you hear what ______ said"
"Yeah, shes such a UCB"
by polaus2 December 09, 2009

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×