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1.
an innovative game composed of a trashcan and a ball-like object created from newspaper and duct-tape. The game needs at least four people to play 2 on 2, but can incorporate as many as 12. The game is typically played in a person's living room.
Rules may vary depending on region.
Hey, lets go to my house to play some extreme trashball.
by Pabreetzio March 30, 2007
 
2.
A guy who is essentially worth less than his weight in trash... see dirtball or asswipe
That guy is hitting on all of the girls at the bar... what a cock-blocking trashball.
by Daniel March 26, 2005