It’s slang for claiming. It’s a New York word. It can also be used in a way as like what you believe or think.
Him: I’m Jackin that he took my headphones
Her: You don’t know for sure so don’t Jack that
by Jayybabyyy February 10, 2020
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Jackin it - The slang term for masturbate

mas·tur·bate
-bat·ed, -bat·ing.
–verb (used without object)
1. to engage in masturbation.
–verb (used with object)
2. to practice masturbation upon.
Origin: 1855–60; < L masturb&#257;tus, ptp. of masturb&#257;r&#299; to engage in masturbation

—Related forms
mas·tur·ba·tor, noun
Dictionary.com Unabridged (v 1.1)
You: Where is Nick?
Me: Oh, he is at his house jackin it to some porn.
by SpERRM November 05, 2007
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jackin is another word for stealing.
Example can be found on Ice Cube's Jackin for beats.
by trock March 07, 2005
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1stealin
2fightin
3masturbatin
-Whats up tho.Where u comin from?
-Shit,gotdamnit.Jst got thru jackin.
-Eh gotta get it how ya live.

Girl:Ugh.Cant stand that btch.Always talkin that shit.
Instigator:Hell,gone get the jackin wit her then.

*If u evr seen Next Friday...When Craig was in the bthrm. Pops was like "Craig.Off yo ass and on yo feet.Aint no time to "beat yo meat"."Yeah.Thats called jackin.
by U herr me May 04, 2008
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