(verb): To make out against a wall; up against a wall.
Guy 1: Hey, where's Jack and Jill?
Guy 2: Probably postin' up against behind the English building..
by Jay Ell October 22, 2007
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Being somewhere just realxing or kicking back ; Usually somewhere on the West Coast of USA. People from mostly California would use it.
- Hey man what you doing?

- Not much jus here at my house Postin West Coastin!
by Chilly Mack October 12, 2009
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When someone is gay but they date the opposent gender
Guys, i came out as Postine
by your real name.gay December 30, 2022
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The act of going to a public place usually a gas station, street corner, by a deli or convenience store and hanging out and standing in a way so people will know you holding / selling drugs.
Where is GQ go? He is at the station postin up...
by OcalaAwesome April 16, 2013
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