Top Definition
When you force a silver dollar size turd out of your bung hole that takes your breath away, and hits the water with a deep impact sound. Thus creating a few beads of sweat on your forehead, and causing the water to splash back directly into your butt hole.

This can also cause your feet to fall asleep while on the toilet.
I cant get off the toilet just yet. That Thunder Nugget caused my feet to go numb.
by Ice_Dibiase April 25, 2011
A bowel movement with such force and sound that it creates a booming fart combined with a missile like displacement.
Stuart dropped such a thunder nugget that our Chris heard it next door in Rita's Water Ice!
by Big Tony Vegas May 11, 2011
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