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1.
Also known as the Hillbilly abortion.
The fetus punch is when a hillbilly who's girlfriend is pregnant and wants to have the child gets punched in the area containing the fetus in an attempt to kill the fetus.
Billy bob ray gave is girlie a fetus punch!
by Marmot April 06, 2005
 
2.
if you're doing a pregnant chick and you are about to cum, you hit her in the stomach so she clinches her pussy real tight around your cock.
i was sloppy drunk and having a hard time getting off with this pregnant 16 year old, so i fetus punched her. that solved my problem.
by dave July 18, 2003