Sound heard on the following occasions:
- Trashcan opening in Comic 11.
- Steve opening Dead Guy's head in Comic 110.
- Evil Hamburger flipping open in Comic 140.
- Timmy the Turnip flipping over to reveal himself in Comic 182.
- Beaver performing an acrobatic FLIP! in Comic 217.
- Steve FLIPs as well as FLAPs in Comic 228, while making fun of birds using his hands.
- Steve FLIPs open the cockpit of his submarine ship in Comic 251.