Having a sexual act commited upon you three times in the one night by a person named Peter. For example, Girl (or fat mess) meets Peter in the club. Girl invites Peter back to house. Girl gets fucked by Peter three times in the one night. Girl has been peterised. Can also happen in an alley.
"I'm a fuck you once, then i'm a fuck you twice, then i'm a peterise you bitch"
"Did you hear the girl over the road got peterised the last night"
A slang term depicting a play in basketball. In said play, a player dunks the ball over top or in front of another player, making a play so picturesque that it may appear on a poster, hence the term, posterized.
Some players may have their own versions of this, such as Greg Ostertag of the Sacramento Kings. When someone is 'posterized' by Ostertag, they are 'Osterized'. This pay is known as 'dirty' and 'ugly' and is generally unwanted throughout the NBA.
a) Yo man! VC just posterized the Pistons! Ben Wallace, you's a poster!