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.
by joindaclub56 June 11, 2011