Sound made by:
- Steve POPping the bubble-encapsulated Beaver in Comic 22
- Steve pulling off his pirate hook in Comic 107.
- The flight attendant POPping open a container of pixie dust in Comic 164.
- Steve's space rocket undocking from the Giant Space Shoe Rack Station in Comic 222.
- Steve leaving Beaver's body through his ear in his submarine ship in Comic 253.
- The dentist ghost's head POPs off in Comic 295.
Also been used in two guest comics, both incidentally made by Kevling: