When you go shit in his mouth, he goes shit in yours, and you French
kiss.
Also, when a guy goes down on a girl while she is on her period, and Gets all the blood in his mouth. And a girl has
blood/cum in their mouth, they
kiss each other.
They did the dirty rainbow
kiss.
Sally wanted to do a dirty rainbow kiss with
Tyler.
He's so
fine I'd dirty rainbow kiss him!