A regular automobile such as a Honda Accord or a Toyota Camry. The name refers not to the safety of the car but to the fact that the people driving them don't really live. They are already dead.
A common name for the box Microsoft sends you to put your faulty Xbox 360 in to return back for a fixed one. The Xbox 360 has been infamous with the Three red lights which signals hardware failure.
Joe: Dude, let's playthe new game I got for the Xbox 360!
Jim: I can't, I'm still waiting for my coffin so I can get a working 360.
Refers to a can of chewing tobacco. A stereotypical coffin is full of death, as so is a can of chewing tobacco. But the word is used amongst chewers as a code so that they may talk about their tobacco with out any having to know.
"dude, i'm dyin right now...we need to get a coffin fast"
Me: Mom buy me a new fucking coffin
Mom: I just bought you a new one yesterday your going through those things like mad Me: those roaches in the yard need proper burials
Mom: those weren’t roaches they were small children