Top Definition
when a girl is riding you backwards and you stick your thumb up her butt and you get shit on it.
last night this chick rode me backwards and i stuck my thumb up her butt. when i woke up in the morning i had shit thumb!
by shizzle07 June 17, 2007
5 Words related to shit thumb

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.

×