Placing your face in between two unnecessarily huge boobs, then moving your face side to side screaming for help, the resulting sound sounds like the motor of a yacht.

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.

The same concept of motor boating, but down under