Top Definition
When you have sex with a female while she is menstruating and the guy is doing a shit and getting mess all over the place.
guy 1: omg man i got to 101st base with my girlfriend last name

guy 2: *throws up*
by Jubz! October 25, 2006

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.