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A term used when some is trying to get with someone else.
Jose: Dude, why is Leah always jumpin' my jock?

John: She's just desperate. You're like the fourth guy this month.


Mike: Why does Kelsie jump Steve's jock every time he's around?

Josh: Dude, you know she's liked him since Freshman year. Give her some slack.


Jake: Hey Kristi, why do you gotta jump jock so much? This is like your fourth boyfriend this month!

Kristi: It's not my fault there are so many cute guys!

Jake: But all your boyfriends are ugly...
by Captain DFTBAwesome October 31, 2010
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