1. An act of complete and total idiocy, committed by someone who has been forewarned about the lameness of the act about to be committed.
2. Describes one who repeatedly does the same foolish act repeatedly with self-deprecating results.
Chaz: Mike's been wearing that Slayer shirt for like a week, he fucking stinks.
Nate: I know, I told his ass.
Chaz: He's cocktarded dude.
Nate: I know, right.