when a strait man is good friends (or best friends) with a woman and has no chance of having a sexual relationship with her.

Referring to women who are sexually or romantically attracted to other women. Applies to both lesbians and bisexual women, as it is only the same-sex attraction that matters, not any other attractions the women may have.

Originates from the Greek poet Sappho, a bisexual woman from the Isle of Lesbos, from which we get the term lesbian.

Always sticking with your friends in your little circle of 4-6 friends. Meanwhile everyone else hates your little group, you always have each others backs and when your boyfriend/girlfriends are right about something you choose your friends ideas and sayings instead.