look up any word, like tribbing:
 
1.
PKB
Stands for Pot, Kettle, Black. Used as an abbreviation on USENET and message boards to point out hypocracy.
When he called me a hopeless virgin, the PKB meter exploded.
by D. Arse September 22, 2004
 
2.
PKB
Parkour Bandits. They Run around staten island, New york Doing crazy shit.
OMGZORZ It's teh pkb!
by Al! November 08, 2006