A fork of Rural Dictionary
When a guy ejaculates in a woman's pussy. From "Box", britisjh slang for pussy. and jacking.. so to have "Jack in the box", is semen in the pussy
Hey you see that nasty chick in Cream pies #8? Yeah, totally Jack in the Box
Similar to Jack in the boxm except instead of a guy ejaculating in her pussy its up her ass
Did you see Anal Bitches #34? Nothing nut Jack in the crack