to know something, to have somethin new; mostly used to brag or to tell someone they aint know sumthin

also used: up on dis
You seen my new Jacob? Thas right nigga you aint up on dis!

I been beatin your grl for months now...you jus wadnt up on dat
by CeeCee October 26, 2004
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To 'bang,' have sex, or otherwise canoodle with. Presumably another person, a sexy one; but could also be used in an ironic fashion for an object (tangeable or otherwise) which is particularly awesome.
"Man, that girl is hot."
"You wanna get up on that?"

or:

"Holy crap, this song is awesome. I totally want to get up on that."
by lizzi May 18, 2005
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Getting better, actively rising above, coming in to your own, living large and getting larger.
"Feeling damn good, I'm on the up and up!"
by j e t August 26, 2005
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The opposite of keepin it on the downlow or doing stuff that you don't want anyone to know.
I ain't got nothing to hide...it's all on the up and up. We together, he cool.
by Dr Dre August 18, 2005
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to increase in value or update to better quality
You need to up up that computer, it's falling apart.

Up up your shoe game, those SB dunks are old.
by Cool Guy Danster April 22, 2008
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1. To do something unexpectedly or with out any thought

2. Impulsive act
My neighbor was sitting outside talking to his wife when then he up and shot her. I did not see that coming.
by Breaking dancing on cardboard September 27, 2019
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