Chyme or chymus (/kaɪm/; from Greek χυμός khymos, "juice") is the semi-fluid mass of partly digested food that is expelled by a person's stomach, through the pyloric valve, into the duodenum (the beginning of the small intestine).

What your body goes through when you vomit?

As your body prepares to vomit, the major muscles in between the neck and abdomen – the diaphragm, chest wall and the abdominal muscles – all contract at the same time. This puts pressure on the stomach, forcing the contents in the stomach up the throat and through your mouth.

Is it good to throw up bile?

If you vomit bile more than once, you could be having a medical condition responsible for the problem. Yellow bile is usually a result of changes in the body due to the underlying condition. In most cases, it's no cause for concern, especially if you vomit while your stomach is empty.