Place it at the end of a short gag sequence in your edit, right after the action that causes the reaction. Pair it with a wet fart for a grosser punchline, or follow it with a nope to cut the scene short and move on.
About this sound
This is a just-over-one-second zombie vocal sound from Plants vs. Zombies, the disgusted groan a zombie makes after biting into garlic. It is pure cartoon revulsion, a spluttering, repulsed noise that lands as funny rather than scary. It comes from the garlic mechanic in Plants vs. Zombies, where the plant forces zombies to change lanes.