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"
A combination of the fluids resulting from both male and female ejaculation. Usually causing a heated debate as to who is going to sleep in the wet patch.