(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 8, 2006
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to make your presence known. Could be done while getting a photo taken, waiting for a bus, or simply hanging out. Usually done by standing straight up and grilling.
What do you say we get some chairs, sit in the middle of the mall, and just post up?
by JT Dollar Sign December 20, 2003
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A basketball term in which an offensive player pushes his ass into a defender in hopes to push the defender backwards. The goal is to get closer to the hoop and get a basket.
He better post up against lebron if you want to make a basket
by Naturecamper July 11, 2016
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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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What many people say to others after they post an entry in something, usually in an online blog.
"Post up" - Bob
"Alright, I'll check it out in a little bit." - whomever he is speaking with
by Vio-lence March 8, 2006
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When a broad is showing great interest in a guy, and really wants to fuck him.
Money: "Yo Wake, that broad wants your cock eh?"
Wake: "Yea she's Postin-Up hard!"
Money: "I'd let her Post-Up any day"
by Money Wake April 8, 2008
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