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1. poster
Parent over shoulder abbreviation. Used as a disguise for POS.
John: POSTER?
Jim: nope

Jake: POSTER
Jack: ok
by Fredy May 28, 2005 share this
2. poster
Bulletin board author
A user who authors a "post" in an online bulletin board.
by Jonathan Corley Dec 4, 2004 share this
3. poster
A phrase usually stated during a basketball game in which one player embarasses another player by either vigorously blocking his/her shot or emphatically dunking over someone
(after somebody dunks over Kwame Brown)
Marv Albert: And (insert player name) puts Kwame Brown on the poster.

or simply

(in a mournful voice)
(player name)...........welcome to the poster
4. poster
an ugly little boy that looks like a girl. usually has an ogre looking girlfriend, and loves to call people rude and aweful names. all together he is a bad person..
"OMG, dude you're being such a poster right now."
ugly ogre rude aweful bad
by olgga Jan 23, 2008 share this
5. Poster
another form of the word cool; to approve of
I just saw that movie and it was totally poster
6. Poster
I.e. cool, mega cool, excellent
"I would love to goto see ACDC live man".

"Me too, that would be poster!"
by Romeo Oct 21, 2004 share this
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