A fork of Rural Dictionary
Thunder Punch or Thunder Punching is a sexual act performed on a female. It is when you are doing a girl from behind (In the pussy or monkey of course)when all of a sudden you spit on the girl's back. You quickly pull out, and Punch your fist into the girl's pussy and yell "THUNDER PUNCH". Then continue with the pounding.
"Hey Danny, I thunder punched this girl's monkey like 5 times last night."