1. A person who fakes or acts like they own the car they're riding in.
2. The friend that hangs out the window trying to holla at females
3. That friend who always mean muggin from the front seat

Rudimentary device for securing a lose penis. To create this device, a string is tied around preferably the foreskin or head of the penis if foreskin is not present. The other end of the string is attached to an anal toy of some sort. When the anal toy is inserted in the user's anus, the string will pull the dong between the legs and across the gooch, securing the penis in place.

when a man straps a dildo around his waist and begins to penetrate a girl with it

A Mexican seatbelt is a rope that keeps someone secure while riding in the back of a truck.

the act of slamming on your brakes when your friends don't have their seatbelts on

(verb) The act or tying your penis to the security bar of a roller coaster as a safety measure to prevent death.

The act of sexual intercourse.
Most likely in an car.