The act completing a specific task, the end of any action or noun, in either a highly negative or highly positive manner.
Pos - Dude, school's finnally out. We're Doneski!
Neg - 44 to 0 fourth quarter? Dude, our team's doneski.
Neg - 44 to 0 fourth quarter? Dude, our team's doneski.
by Andrew Turner, Adam Purcell November 11, 2007