The term "barf bag" is commonly used to describe a bag that one can vomit into, primarily on airplanes. However, there are several other synonyms that can be used instead of "barf bag." For instance, some airlines refer to it as a "sick sack" or "air sickness bag." Other synonyms include "emesis bag," "nausea bag," "vomit bag," and "disposable vomit bag." These synonyms are essential to know as they come in handy when communicating with others while on board or when discussing air travel experiences with fellow passengers. Regardless of the name given to it, the main purpose of a barf bag is to contain vomit and prevent passengers from getting sick during flights.