head lock
Alaskan head lock
When a naked female sits on the shoulders of a naked male and chokes him with her thighs as he jerks off, eventually causing him to pass out as he cums.
chewbacca In a head lock
A chewbacc in a headlock is a sex act where a man with a completely un-trimmed bush fucks a woman until he is about to climax...then he pulls out, sticks it in her mouth, grabs her head and forces her to take his cum and bite all his pubes off.
Tumlin Head Lock
The act of assisting someone in masturbation using the inside of your elbow, also called the Melrose Chicken Wing