Upchuck is a slang term for vomiting, and there are several synonyms for this unpleasant act. Some of the commonly used synonyms for upchuck include hurling, puking, barfing, retching, and regurgitating. Each of these synonyms describes the act of throwing up with varying degrees of intensity and discomfort. Other less common synonyms for upchuck may include disgorging, expelling, and ejecting. Regardless of the word used, vomiting is a natural reflex aimed at expelling toxic or unwanted substances from the body. While it can be an unpleasant experience, it is a necessary function for maintaining good health and well-being.