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A secret underground society that will one day rule the world.
The only people who know what "PCB" actually means are the members of "PCB".
person1: Have you ever heard of PCB?
person2: Um...I don't think so.
person1: K.

(Person 2 is secretly a member of PCB)
by PCBPCBPCB May 05, 2009
65 60
"Professional Cock-blocker" someone who gets in the way of a person and their significant other spending time together and/or having sex so often they exceed the level of cockblocker.
"Your little brother is a PCB, he's always following us around."
by sasha88 October 04, 2011
13 14
(noun) stands for Pure Crystal Based Shit. The way to express one's excitement over something. It means awesome, epic, amazing, cool, radical, intense, life-changing.
"Yo man that's total PCBS stuff right there."

-"Do you use Old Spice deodorant?"
-"Ya man, PCBS all the way!"

-"What kind of weed do you have?"
-"I've got some PCBS that will blow your mind!"

"I just won an award for best music video category... PCBS!"
by Brutus Grass January 10, 2011
8 9
stands for poop cock bitch;known as the curtis park anthem
p.c.b. you got shit on your lips
by sir giggly bob dididly blavin December 07, 2004
4 9
Pcb is a 3 letter acronym that stands for "I Love You"
Daniel : Pcb Christine!
by Daniel<3Christine March 05, 2008
65 113