The act of convincing a female to remove her shirt and bra prior to jerking you off. The logic is that after wearing her down, even to agree to said jerk-off, you thoughtfully propose that she would not want to stain her clothes with any of your man juice.

A two part process of showering (clean) and masturbating (jerk). The clean does not necessarily come before the jerk, in fact more times than not the jerk precedes the clean. The engaging party often feels a sense of accomplishment upon completion of the clean and jerk as they have killed two birds with one stone.

masturbating while using a disinfectant wipe, to ensure cleanliness pre and post masturbation.

Immediately prior to climax during sex, withdrawing the penis clean and then discharging a hot wad of man juice onto the partner's body.

jerk & clean is what a guy does every morning when he has morning wood.

A name for a mans dirty genitals

Or the prosess of masturbating with your hand reversed

Masturbating in the shower