Similar to the Pirate Bath, a Slut Bath is performed by people who smell quite rank but simply do not have the time for a full bath, like a prostitute.

The person in question takes a wet wash rag or wad of napkins, sometimes soaps them slightly, then washes the under arms, neck and private areas vigorously.

When a girl generally wearing a tube top or even one of your friends who happens to look expecially slutty any given day appears to have taken a bath in "slut." On occastion a slut bath might not appear to have taken a bath in slut until you see her hitting on every boy at the party including your boyfriend.