Top Definition
A condition affecting about 1 in 20 humans that results in an upside down hard one when experiencing morning wood. Usually comes from having a sex change two or more times, and normally occurs on tuesdays.
Tim: Hey, I saw Scott Chubbs in the gym toilets this morning and he had an upside-down pepsi.
John: Did you kick it?
Tim: Twice
John: Shot bay. I always knew Scott chubs used to be a girl.
Tim: Yea, but that upside down pepsi was upside down! I thought they were a myth!
John: Na G
Tim: Oh, aye G
by Barrod September 07, 2007

Free Daily Email

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

Emails are sent from We'll never spam you.