A derogatory term.

Refers to a sexually promiscuous person, usually female.

One who engages in sexual activity with a large number of persons, occasionally simultaneously.

Also refers to one who engages in sexual activity outside of a long-term relationship within the duration of said relationship.

These sexual activities include but are not limited to: passionate kissing, manual stimulation of genitalia and/or breasts in the case of a female; oral stimulation of these parts; sexual intercourse.

In some cases, used to refer to a woman who is wearing "skimpy" or tasteless clothing.

Less commonly, used as a derogatory term by one female for another during periods of conflict.