A penis bone...combine the word penis and bone to get ponis
Davina: he has a really nice ponis...i mean penis bone
by loserrr May 18, 2005
Top Definition
A PONIS is the long, stringy ponytail found on (usually) older men, aging hippy types, typically with thinning hair (or just about NO hair), where each existing strand is lovingly washed and tended so that it can be carefully included in the skinny ponis, the purpose of which is to show that the bearer is still hip, still cool, and maybe still a bit virile. A ponis rarely looks good, often looks ratty, and should usually be CUT OFF!!
That dude's ratty ponis looks like shit!
by T-Bear VT July 07, 2009
A ponytail on a guy.

Derived from POnytail + peNIS.
Billy-Bob used to have a ponis, but he now looks much more sophisticated with his mullet.
by isthisthingonorwhat March 30, 2005
a ponys wiener when he has a hard penile
when i went to feed the pony he tackled me and tried to throw his ponis in my anal cavity
by johnny p March 23, 2003
A penis with a little more "Ohhhh"
...you have a penis, I have a ponis...
by dark_ape November 28, 2004
A nickname given to people who like Pani Poni Dash, perhaps named after one of the characters?
Someone actually believed my real name was Poni.
by Poniponi June 14, 2008
The plural form of Penis.
Damn, Sally been gettin' a lot of ponis lately.
by 'Lil Mama December 01, 2004
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