When you're banging a tranny in the butt when she is lying down. You're so into it that you don't see her jacking one off and she nuts on your Dick causing Cock Stained Balls.
Last night I was doing slippery Sally hard in the ass, right? All of a sudden she busts a nut right on my balls. Fuckin' cock stained balls, man...
A 2 part sexual act. part 1: a headboard or other hard device is used to provide an initial impact to the females forehead. Part 2: during intercourse, the male chokes the female to unconciousness thus rendering her limp.
"Dude last night I gave this bitch the saint lucie strangler - I thought she was dead !"