Basically just you're phone number.. but usually said in a rude way or when you're mad. Meaning like the number ain't jack, who the fuck cares..
"Whatever ma, I didn't give no one your jack number.. I'm off this."
or
"Fuck you nigga. You gonna keep sayin that shit then just delete my jack number."
or
"Fuck you nigga. You gonna keep sayin that shit then just delete my jack number."
by kk.michelle November 22, 2012
(Verb) To contact, connect with, etc. (usually in the future) via phone, text, or email but it can also be used to describe meetin up with someone in person.
by kk.michelle November 22, 2012