Bi
If you're with a girl and she says she's bi you should clarify if she means bi-sexual or bi-polar.
_ I can't take full credit for this because Marilyn Manson (probably amongst others) said essentially the same exact thing on the Bret Easton Ellis podcast dated 11/03/14. Memory is a funny thing, but I'm quite certain my statement was spoken independently after spending a couple of nights with a relatively unstable therapist named Marissa.