Jack Rabbiting 

To go up behind someone and jump and thrust at the same time

As a prank Jon went up behind Andy humped him like jack rabbiting

Jack Rabbiting by Eserahs Phillips May 13, 2015

jackrabbiting 

The process of a women getting fucked by a faggot simply to get another man jealous

I caught this bitch jackrabbiting a team of butt buddies with a picture of (fill in the blank) in her hands

jackrabbiting by BigDickNick123 March 18, 2015