to show up at a location, chill or hang at a location. go some where or meet with friends or homies
hey, i gotta go post up in class or they gon' kick my ass out.
by 'Preme' December 27, 2007
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To sit somewhere or lay down watching t.v with a laptop (optional) and doing nothing for extended periods of time, without a care in the world.
"Yo man. I just got outta class. I'm bout to post up for the rest of the night."
by The Johnster1324233 February 15, 2009
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To stand in a highly trafficed, by people, area and conversate with fellows.
by Austin Burger December 09, 2007
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(noun) When building roof trusses, when doing a hip system it is a truss that has extra support at the top which includes a horizontal beam and 2 or more supports.
Hey.. Dont forget to put in the post up with that next truss!
by Nbail March 08, 2006
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