Any girl that a guy is having sex with. Doesn't have to be a slut, whore, thot, bimbo, baby girl or wife. Any girl that a guy is having sex with is his smut during that time. She might be a
one night stand or life long wife. Submissive or dominant. For a
straight male that finds a girl
attractive and fucks her, she is a smut.
Guy during sex: That's a good smut, keep sucking.
Guy with friends
checking out a girl: Now that girl would make a great smut.
Married guy with friends: I mean I like her as a wife and mother, but she's not a good smut for me anymore. I'm thinking about divorcing her and
getting with a younger girl.
Girl during sex: I wanna be
your good smut daddy!