rhymenoceros 

A mythical cross between a rapper and rhino. Contrary to popular opinion, he is domesticated and even trained, he has fly beats and often carries birds on his back. He both has a horn and is constantly sexually aroused. He is not successful in rap, not making records or rhymes or getting paid for them, which means they don't get played. He is also not sexually active. He enjoys going to his grandmother's tea parties. Contrast with the somewhat more successful Hiphopopotamus.

'I'm the motherflippin' Rhymenoceros!'

rhymenoceros by kldickson March 4, 2009

rhymenocerous 

a rapping water dwelling-mammal from the film "Flight of the Conchords". he kicks ass!

that goddamn rhymenocerous is showing off his rap skills on mtv again...

rhymenocerous by the storm drains December 9, 2008

Rhymenocerous 

A horny rapper with birds on his back.

Some other people on Urban Dictionary think the Rhymenocerous is or should be specified as not a large, water-dwelling mammal, but this is absurd, because it is well-known that the Hiphopapotamus is the one who finds it necessary to cite the fact that he is not a large, water-dwelling mammal.

Rhymenocerous by Douglas Pennsylvania December 15, 2010

rhymenocerous 

a water dwelling mammal that moved to the metropoliz

rhymenocerous
not because i'm fat not cuz i got birds on my back.
My rhymes are so potent that when i end this segment
i'll have made all of the ladies in the first two rows pregnant

members.shaw.ca/tom.t/ab/ab-rhino.gif

rhymenocerous by hip-hopapotamous September 23, 2007