Secret Punch 

Calling someone over to hear a secret and punching them in the stomach.

You hide your already clenched fist under a table and have them lean in to hear your juicy secret. Then you punch them in the jijutum and say, "secret punch"

Ronald secret punched Yan in the jijutum and made him puke everywhere.

Secret Punch by quickdraw_mcgraw May 31, 2011

secret donkey punch 

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.

secret donkey punch by Zak A September 8, 2006