Done, okay, finished. In a physical state where further intoxication is
unneeded. Often used as a polite refusal for more marijuana, alcohol,
etc. Also used as a general term for
reluctancy or unwillingness.
"Yo Lee, hit
greens on this bowl."
"Aw,
no thanks man, I'm champ from that last one."
"Bro, let's throw eggs at some traffic!"
"I'm champ on that, dude.
Count me out."