It is the same concept as the original "donkey punch," but with a twist. During Anal sex just before ejaculating instead of the obvious knuckles to the back of the head have any weighted object on a high point above the recievers head and give it a lil nudge. Thus causeing the pain which tightens the anus. The best part about it is she will never know, and you can avoid the process of police intervention.
I gave my girlfriend a secret donkey punch, so I can have anal sex again later.
by Zak A September 07, 2006