A large room usually in a public place that houses a large number of toilets. It's a contraction of "defecate" and "auditorium".

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.

A bathroom where one can go #2.