The act of losing a "Table Game" led by the older of two age groups at camp, and being forced to take everyone's plates and silverware up. It is a very unwanted job. Also used as a figurative expression when someone does something stupid, a given older kid will pretend that the younger kid deserved to clear the table for what they said or did.
John: Mark, Clearing!!!
Mark: Ahh! I'm so bad at table games. I literally clear at least once every day!