When a fucked up dude is born with a mutation causing him to grow two dicks
"I'm fighting cancer" "well nobody's perfect" "then what's wrong with you I'm bi-penial that sounds horrible" "no I've got 2 dicks"
by Bi-penial August 23, 2013
1 more definition
(Adjective) Of or having two penises; two-dicked.
Holy shit, man... I was watching this special on the Discovery channel, and they said that there'e people who are bi-penial. That they have two dicks, man!
by Jorge April 05, 2003