When a girl heavily flirts with a
guy or leads him on, and then
abruptly disappears or abandons him
just before he makes his move to close the deal.
John (at a party): "Dude, this
chick was all over me for like three hours. It was a slam
dunk that I was gonna bang her, but then she goes to the bathroom and leaves the party with her girlfriend without saying a word to me."
Tim (John's friend at same party): "Dude, you just got fucking
clit slapped big time."