get a boner, hard on

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.

when a male of the human race and his erect penis makes the sheets look rather like a tent

The Art of gettin a bonner from a chick in the shape of a tent