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Psycho Fuck Bitch. A person who is abvolutely intolerable.
A PFB is a person who makes your life a living hell, or HELLen. EVIL.
by Angel666_PFB June 05, 2006
A fast way of saying Pretty Fuckin' Bad, or basically anything that starts with Pretty Fuckin' B______.
Man that chick needs a shower PFB!!
by tony July 10, 2004
To be "Prepared For Butt Sex"
Dude1: Hey dude, do you have any lube?
Dude2: Umm... Why?
Dude1: Well this girl promised me that i could put it in her anus but i don't wanna go in dry.
Dude1: Oh! ask Kyle! he's always PFBS! ;)
by TheyCallMeStoner November 14, 2010
An acronym for "personality face body." Often using a scale from 1 to 10 ( with the occasional negative), it is characterized by its common use by males for judging a female.
"Hey, Man, PFB Jessica Alba."

"That's easy, 8 9 9."

"Dude...are you a queer?"
by Mac013 November 02, 2009