short for cock-block. often times a drunk, clueless girl/guy who prevents a friend from getting it in.
by yumyumdumm January 31, 2011
by Al Phillips December 30, 2007
1. A form of degree used in order to make sure children are not enjoying themselves. Stands for Certified Buster of Shit. Parents must qualify by passing 150 question Series CBS examintation, at any Thomson Prometric Testing Center.
by Blair/Chris June 28, 2005
One who cock blocks another from being able to engage with a woman in any social manner. Mostly referred to as a CB. Also refers to guys who are with good looking woman but shouldn't be. Guys who try to attract the attention of the woman you are speaking to.
I was Cb'd by this guy last night at the club. I was talking to this girl and he walked up offered to buy her a drink right in front of me! What a CB.
by Ray McLure January 04, 2006