gallstone - A giant rock fired from your gut like a cannonball when you

A giant rock fired from your gut like a cannonball when you eat too much junk food and regret it instantly

My dad's gallstone was so big, it blocked the plumbing and he had to go to the ER in a wheelchair.

I had a gallstone the size of a baseball, and it was like having a brick in my stomach.

My mom's gallstone was so bad, the doctor had to use a laser to blow it up.