Front: 
Grab Crunch Twist
 
Back:
nutcracker
[nuht-krak-er]
noun
a counter-attack used in self-defense delivered to a male’s groin in a grab, crunch, twist motion, usually involving the testicles.
verb (used with object),
2. to strike with a nutcracker
nutcrackered,
nutcracking
Shovein, C. (2024). Nutcracker. At the READY. www.atrdefense.com