Obulum Cloud
A giant butt burp that slithers up your butt and leaks into your pants like a toxic waste spill. It stays there for so long you think your pants are now a prison for your butt.
My gym teacher thought I had a radioactive butt after my Obulum Cloud hit the entire class.
I tried to hide my Obulum Cloud under my desk, but it escaped and made my lunch stink.
My dog ran away screaming after my Obulum Cloud hit him in the face.