stands for: Cell-phone douche-bag. Basically anyone who uses their cell phone in order to make themselves look like they actually have friends. Also can be someone who uses their cell-phone wayyyyyy too much
*People at a dance*
Person 1: Hey man look at that guy over there staring at his cell phone so much its like he's watching porn
Person 1:Yeah only a CP DB does that kind of stuff when your supposed to be socializing
by rebeccablackfridaysuckshard March 23, 2011
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