A term used when in a competition, one team or individual dominates the other with impunity. The inferior team/individual is said to have been "tubbed".
In CounterStrike the other day, I killed a guy with a knife, and promptly yelled, "YOU JUST GOT TUBBED!"
An NBAteam based in Chicago. This team is famous for having star players like Michael Jordan and Scottie Pippen on its roster. Won 6 NBA championships so far.