To get or keep a distinterested guy interested in a relationship, a girl will tell tales of being bi, hot bi hook-ups and allude to him participating in possible threesomes with her bi friend, but the tales are mostly false.
Girl #1: Joel is losing interest in me. I caught him texting some other chick.
Girl #2: Did you play the bi card yet?
Girl #1: No, but I will. Can I name you as my bi girlfriend?
Girl #2: Yeah, what are friends for?