The extreme form of the term getting tore up. Drinking to the point of blacking out and not remembering anything.
"man i got tore down at that party last week."
Extremely drunk, even more so that wasted, smashed, or plastered.
Your sister: "Hey baby, wanna get it on?"
Nick D: "No. I drank too much. Can't you see I'm puking here?"
Your sister: "I don't mind a little puke. You know where to find me, big boy. I'll be waiting for you."
Nick D: "In your dreams, ho. I may be tore down, but that doesn't change the fact that you're straight TORE UP
To be so trashed on substances for such a long period of time that your body, mind and spirit are equivilant to that of a jelly fish... on crack.
Damn, that bitch is tore down.