googlebong
The sound one makes when using google and finding exactly what you were searching for in the very first link shown. This noise has no precise sound and can be made extremely personal. It can also be followed by, but not limited to: sweet, owned, awesome, woot, holla, cha-ching, oh yeah, groovy.
After enter in the search, "My New Haircut" in google, Billy Bob yelled out a loud googlebong followed by an even louder "PROTEIN!!" and was immediately escorted out of the library.