Leaving remnants in the bottom of a beer can or bottle. Can also be used to describe the same remnants left in a bottle of whiskey, vodka or any other alcoholic beverage.
"Hey, John, you didn't finish your beer there's still a swallow left in the bottom. That's alcohol abuse!"
"Dude it's all backwash and it's piss warm!"
"I don't care dude!! You just Bodesed a beer!"