Top Definition
Planned or having something to do already.
Willing to do something.
Having something tangible with you.
You: U comin thru tonite ta help us out?
Me: Cant make it bruh i already got somethin on jump.

You: We 'bout ta go to tha studio and record this new track. R u on jump?
Me: HELL YEH im on jump!!

Me: Dayum!! Dem J'z cost 120 but i only got 110. u got 10 dollarz on jump?
You: Aight yo but'chu gottsta hit me back!!
by B-Rob3000 March 01, 2011
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