Sound Ideas, BALLOON - BALLOON AIR SQUEAK 04

This sound effect can be found on Hanna-Barbera Sound Effects Library, which was made by Sound Ideas.

TV Shows

 * Bob the Builder (Heard once in "Mr. Bentley's Winter Fair." When Spud and the pig cause mayhem with the stalls, he accidentally causes Bob to stick his walkie talkie into the inflatable Santa which then punctures it, this sound plays when all of the air is let out.)
 * Cow and Chicken (Heard once in "Fluffy the Anaconda" in a very low pitch.)
 * Jollywobbles (Heard twice in "Swimming.")
 * My Life as a Teenage Robot
 * Ooglies
 * Out of Jimmy's Head
 * What a Cartoon (Heard twice in "What's Goin' On Back There?")

Audio Samples
(Warning: May irritate you.)