Definitions by R.C. Bega

Mexican tetris 

To "Beaner pack" a car. simply put fit as many people in a car as possible, which usually include turning and bending people to fit in the car much like the very popular game "tetris"

Dude we had to play mexican tetris to fit all those people in the car!

Mexican tetris by R.C. Bega May 5, 2008