upside down trashcan Posted in U Best definition upside down trashcan when you hold someone upside down by there legs and they try to wrap themselves between your legs and try to eat out your buns. Me and my GF did a upside down trashcan last night. How satisfied are you with the definition? Looking for upside down trashcan meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 46 times.