gut

The alimentary canal, especially the intestine.

The abdomen of a person, especially one that is enlarged

"beer gut"

The intestines of an animal used to make strings of a tennis racket or violin, etc.

A person's emotional, visceral self.

"I have a funny feeling in my gut."

To eviscerate.

"The fisherman guts the fish before cooking them."

To remove or destroy the most important parts of.

"Congress gutted the welfare bill."

Made of gut.

"a violin with gut strings"

Instinctive.

"gut reaction"