While trying to perform the act of
surprise sex only to discover that you are extremely intoxicated, having "
whiskey dick", and therefore disappointing the suprisee and shaming
the surpriser.
MO: "So Tara what did you last night?"
TARA: "
Neal, this guy I met at the bar last night, tried to
surprise sex me after I brought him home, but he drank so much he couldn't
get it up."
SHANNON: "Woaah, that was a major case of Whiskey Dick
Surprise Sex!"