Gulu-gulu

(pronounced as - Goo-loo goo-loo)

The sound that your stomach makes when it's upset or when you're probably gonna have an explosive diarrhea shortly.

1. Dude. Don't eat that leftover, it's gonna make your stomach gulu-gulu.
2. This kimchi made my tummy go gulu-gulu. I gotta take a shit, and quick.