"Chunder" is a slang term for vomiting, but there are many other ways to describe this unpleasant bodily function. Some synonyms for "chunder" include "puking," "throwing up," "regurgitating," "heaving," "retching," "barfing," "gagging," "hurling," "upchucking," and "spewing." These words can be used interchangeably depending on the situation or context. For instance, "upchucking" might be considered more casual or humorous, while "regurgitating" might be used in a more formal or medical setting. No matter which synonym is chosen, one thing is certain: nobody enjoys chundering.