clean time/ prison term for the hiatus of the last time some one gave head and swallowed.
e.g.#1 i would kiss jenny if I was you, she just walked out of the room with brent she has no clean time on her what so ever. - another classic example ,of ain"t telling were those lip have been. this term could be used to sex play people male or female. e.g#2 what kind of clan time you got on you.