1. A car full of unattractive and most likely overweight women (Sometimes referred to as Grenades).
Origin: This one time we saw a car that is shaped like a box driving stuffed full of ugly bitches. We called it a "Box of Grenades" then shortened to "Ammo Box"
Origin: This one time we saw a car that is shaped like a box driving stuffed full of ugly bitches. We called it a "Box of Grenades" then shortened to "Ammo Box"
by Falco399 July 14, 2011