The act of getting completely hammered
then stripping down naked
and going up to a random persons door. When you get to the doorstep you begin to masturbate
and when your getting ready to cum
you start knocking on the door. When the person opens the door you ejaculate on them, punch them in the face and leave casually.
Yo brah, last night i got so drunk
that i went around my neighborhood and gave some old guy a good ol' sloppyknocker.