When you secretly jerk off while your girlfriend is sleeping, and wake her up, telling her there is an emergency. When she asks you what's wrong you blow your load in her face.

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.