This is a falling/air whistling sound effect. Its roots and relative libraries, among other info, are yet to be announced, but it was originally an anime sound effect. It's usually used by Joel Valentine and composes itself of 2 descending whistles, one of which sounds like a higher-pitched version of the sound. The whistle sounds like a short, modified variant of WHINE, CARTOON - SHELL SCREAMING WHINE DOWN.
- Dexter's Laboratory
- DC Super Hero Girls
- Foster's Home for Imaginary Friends
- Kid Cosmic
- Korgoth of Barbaria (Pilot)
- The Powerpuff Girls (Seasons 1-6 only)
- Samurai Jack
- SpongeBob SquarePants (Heard twice in "Sand Castles in the Sand".)
- The Super Mario Bros. Super Show!
- Sym-Bionic Titan
- Wander Over Yonder
- Dragon Ball Z: Budokai
- Zoids Battle Colosseum (cut off at the end)