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1.
A term used to describe a person's state after drinking to excess. This state is commonly associated with memory black out and a severe hangover the following day.
How was the bar yesterday?
I was absolutely shitstained last night.
by Jagsh February 16, 2009
 
2.
Completely full of fuckin' shit like someone had shitted on you or when you are in a big trouble or really pissed of.
- Oh my gosh!This fuckin' bird has shit on me!I'm fuckin' shitstained!
- I have to pay that fine and I'm broke!My father is gonna kill me!I'm shitstained
by Johnny Diddy 23 September 24, 2006