This sound effect can be found on the Valentino Production Sound Effects Library. It's a low quality variant of the 7th boing from Twangy Boings 7 Type CRT015901, cut off at the start.
Used In
Video Games
VTech V.Smile:
Toys
Image Gallery
Shrek the Third: Arthur's School Day Adventure Valentino Comedy effect - boing, spring 1.
Audio Samples