look up any word, like half chub:
 
1.
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...
by the storm drains October 24, 2008
 
2.
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.
by Douglas Pennsylvania December 14, 2010
 
3.
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
by hip-hopapotamous September 10, 2007