When your girl is weirded out by you eating her pussy while she is on the rag I.e. eating pizza, so she calls in a friend to take over.
Guy: Hey Babe, come over here and sit on my face.
Girl: Sorry babe, Ive got an actively leaking hatchet wound, I’ll have to call in a cunt double.
When you find a porn star that resembles a person you know in real life
Instead of shooting your shot, simply avoid devastating rejection by going home and searching their cunt double on pornhub. Easier, cheaper, and non-judgmental .
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and four great-great-great-grandparents in common.
Double-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and four great-great-great-grandparents in common.
My double-fourth-cousin is a good person.
When you have to take another shit in the same bathroom break.
Person 1: What were you doing in there?
Person 2: I had a double shit.
Person 3: Damn
Surprising your girlfriend to a romantic dinner and when you get back sticking your dick in her as a surprise.
Last night I gave my girlfriend a double surprise. She did not expect to get the D after the Horror movie date.