meaning that one's penis is so large, it seems to be three penis' morphed into one super large penis. It is from the origin of "tro" meaning enormous and "penis" meaning a male's genitalia.
"Oh my God, forgot Gary's parsnip, I want your tropenis!"
by Toad Crack February 28, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×