1) to do everything right and then choke when it really matters, esp. when trying to get a girl's number.
2) to have been played by a girl you've been trying to hit on.
noun form:
sweener
adjective form:
sweeney (note: does not apply to girls in definition 2. Instead use words like bitch or the c-word -- it gets confusing otherwise)
past tense:
sweened
1) I was talking to her one-on-one but seeing how
sweeney I am, I couldn't land her number by the time she left.
2) "Dude, I was talking to her
on the bus for a good 20 minutes and I thought she was into me, but left without saying a word!"
"Damn man, you got
sweened!"