It's quite probable that you could suffer serious injuries but doubtful if you would die from it, due to the fact that you would be in so much pain that you couldn't deliver the "death" blow.
But you could die much later on from internal injuries.
However, Houdini died to a blow to the stomach - from someone else - so yes you could.
Best not to think about even trying.
punch your self in the stomach as hard as possible
The homophone of "punch" is "paunch," which refers to a protruding belly or stomach.
Stand up for yourself! Punch them in the face or kick them in the stomach, then tell them what a pervert they are. Women aren't owned by men!
Houdini
Yourself
You are likely to be punched in the stomach if you just had a large meal, such as Thanksgiving.
punch yourself in the face === ===
express yourself
Punch them in the side of their stomach! == ==
Houdini used to hold competition for strong men to punch him in the stomach, if they could injure him they won, if not Houdini did. It was said that the day he died such a competition was going on, except that instead of tightening his stomach as the punch approached he coughed. Full impact of the punch killed him.
Punch Miller died in 1971.
John Punch died in 1661.