Definitions by Big Nu

Shark fin poop 

Noun: An act of defecation in which an increased amount of feces causes a portion of the pile to exceed the water level in the toilet bowl, resulting in an unusually strong smell.

“I just dropped a shark fin poop – don’t go in there for about 35-45 minutes!”

Shark fin poop by Big Nu April 7, 2019

free farter 

One who lets farts fly without any attempt to conceal them.

Grandma has no shame about dropping loud farts, even when she has visitors over. She's a free farter.

free farter by Big Nu March 11, 2012