fills in for the lead actor (who is not wellendowed) when an "action scence" is needed in a porn flick.
actor: "i'm going to fuck you now."
direcotr: Cut! Bring in the Stunt Cock!!!
actress/stunt cock: AHHH OHHH YEAHH...
By Lynnelle
Stunt Cock
The guy who sleeps with a girl after some other guy (usually a mate/friend) puts in the effort chatting her up.
Usually when a group of guys are out together and one spends the night chatting up a girl but when it comes to the crunch she mysteriously ends up getting shagged by one of the other guys in the group. The first guy is the fluff boy..the other is the stunt cock!
Tim: Hey Rick, how did your date go last night? Did you get some?
Rick: Everything was going great, I got to 3rd base but just couldn't do it.
Tim: Rick, the next time that happens give me a call. I'll come over and be your stunt cock.