To give someone a phone call, page, instant message, email, any form of communication
Just hit me up on my celly, I'll pick up right away.
by LoveInABottle January 30, 2004
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Probably the best rap song made as a diss. This song written by 2pac was written because 2pac felt that Biggie and his crew knew that 2pac was going to get mugged and shot but they didn't tell him. 2pac throws this diss at Biggie, P. Diddy, Lil kim, and bad boy records in general, and all of Biggies junior mafia crew. This song is know for its liberal use of swear words. 2pac uses the word fuck or other forms of fuck a total of 43 times in this. This song is one of the many things that makes 2pac superior to Biggie and any other rapper ever to walk this earth.
2pac does nothing but hate on east coast rappers in his song hit em up.
by 2pacalypse for ever January 5, 2010
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talk to you at some point later
ay yo i'm gonna hit you up later when i charge my celly
by Anonymous April 23, 2003
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ill be at the crib at 7 tonight hit me up boy,aight!
by LiL Neice April 7, 2003
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One of the best diss tracks in rap HISTORY. my niggaz 2pac and Outlawz went off on biggie and Junior M.A.F.I.A
that's why i fucked yo bitch you fat muthafucker

first off fuck yo bitch and the click you claim

west side when we ride come equipped with game

Grab ya glocks when you see tupac

call the cops when you see tupac

Nigga I hit em up !
by SUPER_JAY March 31, 2018
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...is telling somebody to call/text or contact you when parting ways
Jt: "damn... dude im flyin, that was some good bud"
Me: "i kno man its some killer, if you need some Hit me Up"
Jt: "yup"
by iNate October 3, 2009
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Hollering at friends;calling them.
person 1:Well nigga, hit that nigga Charles up to see what hes doin.

Person 2:aight i'll go hit em up then.
by A Pimp Named Skinny Brown September 3, 2006
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