Three penises (penii). Caused by a rare genetic disorder. In pornography, this is often implemented to simultaneously pleasure three women (or men, or a combination of both). Will most often result in a trigasm.
by Dinkmers November 23, 2007
A form of penis that a tree has. Only a tree has one of these. Usualy very large. Either green or brown, pending on how old it is. Quite fun to ride.
by Asliceofpizza January 11, 2005