Top Definition
When you get a girl to ride your dick in a movie theatre while your mom is down 2 to 5 rows, any more or less is just crazy, it also is easier to have a scitso monkey.
dude my mom caught me attempting the 39th base yesterday..
by Duncsin July 07, 2008
6 Words related to 39th base

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.

×