A cinch or a girth: a strap round the belly of an animal used to hold a saddle in place.
The intestines of an animal used to make strings of a tennis racket or violin, etc.
A narrow passage of water.
A class that is not demanding or challenging.
The alimentary canal, especially the intestine.
The abdomen of a person, especially one that is enlarged
A person's emotional, visceral self.
The sac of silk taken from a silkworm when ready to spin its cocoon, for the purpose of drawing it out into a thread. When dry, it is exceedingly strong, and is used as the snood of a fishing line.
Instinctive.
Made of gut.
To dishearten; to crush (the spirits of).
To eviscerate.
To remove or destroy the most important parts of.