The generic face made when removing a full, heavy bag of trash from a trash can. Generally entails a neck swivel of at least 90º to the left or right, slightly agape mouth (with top row of teeth showing), heavily squinted or almost completely shut eyes, and crinkled nose.
Although this face is a typical reflex to emptying a trash can, it is often commonly used when reacting to a disturbing/gross image or video, rejecting a member of the opposite sex, or hearing a particularly moronic statement from a close friend.
Tim was talking to Jay about their plans for the weekend when Jay said, "I hope we can go to the beach, I love playing in the snow." Tim then gave him the trash bag face and went about his day.