Bi-situational
A bisexual act that takes place under specific circumstances, often spur of the moment, usually with the female sex and often accompanied by activities such as dancing and consuming alcohol.
Dude, I gotta tell you that when that blonde chick at the club was drunk and was dancing with the brunette chick and making out it was totally unexpected. She must be Bi-situational.
Bi-situational
An individual who claims to be bisexual but only is for attention, or for their partner to have a 3some. Will only go as far as kiss the same sex. A branch off of bi-curious.
Alyssa isn't bi, she's bi-situational so her boyfriend can have a 3some.