Usually used to describe a group of people or just one person who is always at a certain place, just standing around looking for something to do.
"Mad kids are always posted up at this Wawa."
by leeski July 10, 2008
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1.Someone or something that is too prevalent.

2.Being stoked on an enviroment, and willing to stay there for an extended period of time.
by Stewart J. Ferguson March 15, 2011
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I'm so posted up for shark week.

Oh my God, this song gets me so posted up!

I love this place. I'm so posted up right now.
by postedupforhiphop August 10, 2009
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