Someone who is such a douche that they're like a living Mr. Clean, cleaning out vaginas til they're sparkly clean during intercourse in a completely boring and monotonous way. No one likes a Mr. Clean.
A sexual term to be used when one is having intercourse with a bald woman, and before jizzing in her, he takes out his dick, jizzes in his hand and rubs it on her bald head, thus giving her head a certain shine like Mr. Clean's.
Guy 1: "Hey how was your trip to the hospitalyesterday?"
Guy 2: "Oh man I totally did the Mr. Clean with this cancer patient"