the physical act of alternating penetrating open hands up another's rectum, usually done in hate. best depicted in the classis latino film "dos manos en su orto."
When climaxing while having anal sex with a woman, slam your fist on the middle of their back, which makes their sphincta contract, and squeeze every drop out of your penis.
The act of holding a fuzzy oven-mitted hand in between the vagina and anus of a female in the midst of D.P. effectively stopping scrotums from unpleasantly rubbing together.
Gonzo was on Karate Chop Duty while, Andrew, Paul, and Stephen Gang-banged his mom.
A fast moving, flat handed, finger stab, from the bent elbo position. A Mantis chop is usually deployed to the chest, but under extreme circumstances it is ideal to Mantis Chop the neck. When Mantis Chopping it is common for the striking Mantis to yell "Mantis Chop" with high pitch emphasis on the word "Mantis."
"If Elliot eats the last slice of pizza I swear I'm gonna Mantis Chop his neck."