Definition: The phrase "vomit up" is a verb that means to eject or throw out the contents of the stomach through the mouth. This often happens when someone has eaten something bad or has drunk too much alcohol. It can also refer to feeling sick and needing to expel what’s in your stomach.
In more advanced contexts, "vomit up" can also be used metaphorically to describe someone expressing or releasing something unpleasant, such as emotions or ideas.
While "vomit up" primarily refers to the physical act of throwing up, it can also imply a sudden release of something unwanted, whether it be food, emotions, or thoughts.
In summary, "vomit up" is a verb that describes the act of expelling the contents of the stomach through the mouth, commonly due to illness or overindulgence. It can also have metaphorical uses related to releasing unwanted thoughts or feelings.