He probably thought it was one of the organs in his body that he accidentally threw up, so he became scared and swallowed it back. That was really a wacky incident that happened in China. Checkout this story!
A Chinese man who was drunk vomited a meatball-like mass and swallowed it back thinking it was his body part. After the medical test, it was confirmed that the mass that he vomited and swallowed was an undiagnosed tumor.

The 63-year old man from Hubei, China was feeling discomfort in his throat from some time, especially while swallowing the food. But he chose to ignore the problem.

Recently, after a drinking session, the man vomited the meatball and quickly swallowed it back with a glass of water as he thought he had mistakenly puked a part of his body out.

Post the incident, the man decided to see a doctor. He went to the hospital in Wuhan and the doctor conducted the endoscopic test. The medical test revealed that the meatball was a tumor growing in the esophagus of the man.
See details;
https://massmediang.com/drunk-man-vomits-hard-throws-up-undiagnosed-tumor-then-swallows-it-back-thinking-its-his-body-part/

Hmmmmmm

Grey. Flat design is going to die.

I want to make love to your style!