its when a girl trys to go out with guy to guy thinking she loves them but actually is infatuated and desperate
Yo this girl britnay man liked me for a week and noticed I didnt like her, and she cock jumped to my friend Seth.
by VeNgEaNCe132 January 31, 2007
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A sex move in which a man, while having sex in an upright position, secures the female firmly on his penis and jumps foward without holding onto the female with his hands (lifting both himself and the female off of the ground). This is preferably done with a small to medium sized female, and the use of male enhancement drugs (e.g. viagra) is recommended before an attempt is made (for one's own safety).
Jerome: "Yo, did you use that move I was telling you about?"

Tyrome: "Yeah son!"

Jerome: "Nice! The good ol' aussie cock jump!"

Tyrome: "Yeah. Shenequa loved it. Too bad I fucked up and gave her a concussion though."

Jerome: "Bitches be crazy."
by drkchclt October 15, 2008
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When the average slut goes from one guy to another
Look at that slut, Melanie. She's cock jumping from one guy to another.
by LegendAryi April 2, 2015
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