Ash bath
The skilled technique of washing out the ashes that fall back into your car when you are smoking and its cold as hell. The water washes the ashes away. also know as "ash bash" and can be a black orgy.
Dude: there's so much ash in yo car
Brah: nah man i cleaned it with an ash bath
Dude: trust
Brah: nah man i cleaned it with an ash bath
Dude: trust