Rhino Hump 

Verb. The act of thrusting your knee into another's tailbone with tremendous force.

"Ouch, my ass hurts!"
"Why?"
"Brian Rhino Humped me yesterday and now I have a bone bruise!"

Rhino Hump by Reegs December 14, 2007

Baby reverse rhino hump 

The act of humping a girl with your knee, ever so slightly, when making out so that it gives her pleasure. Mostly used by couples who want to stay virgins.. for some reason or another.

Bryant: "Why do you have a hole in the crotch of your jeans?"
Jamison:"Oh because Robbie was baby reverse rhino humping me last night. We both have purity rings, so its gonna have to due."

Baby reverse rhino hump by JamieandRobie June 9, 2011

Hump by a Rhino 

The thrusting of someones knee into another persons anus.

Dude! Did you see me give that mail room clerk a Hump by a Rhino? I think I broke the mans butt!

Hump by a Rhino by CatSEWER October 18, 2009

rhino humped 

goin up behind sum1,then grab them by their shoulders,an take ur knee n shuve it into the persons ass as hard as u can.

fuck i got rhino humped by ronnie the other day n it hurt so bad!!!

rhino humped by travis polovich July 22, 2006

Humperdink Rhino 

The name given to fictional characters when you can't remember the real name.

Yea the guy who played in that movie was......um.....humperdink Rhino or something like that.

Humperdink Rhino by The Burt of Punta Dilla Shorts January 1, 2007