A
commonly used term for a crazy girl. When you are
having sex with her and you are about to climax, instead of letting you pull out she locks her legs around you in an attempt to have you
ejaculate inside of her.
Jeffrey: Hey bro
I think I'm gonna ask Cynthia out on a date.
Ricardo: No dude steer clear from that she's a leg locker!
Jeffrey: Dude
you're right she said she does jiu jitsu!