1 definition by Nee Nee Boy

The Boston Sea Crab is when a man ejaculates in a woman's anal cavity and the female farts and it comes back out
Gary - "Oh I am about to nut"
Shirley "Not in my ass!"
Gary "OH MY GOD"
Shirley "You came in my ass"
**Shirley Farts and jizz comes out**
Gary "I just gave you the Boston SeaCrab"
by Nee Nee Boy October 23, 2007

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.