Noun
(informal) a bag or sack used to catch and contain vomit
(derogatory, informal) A term of abuse.
Source: en.wiktionary.orgMy wife's brother has a little house on a small island in the Baltic Sea, and we go there at Christmas. The 30-minute crossing from the mainland to this island is the most terrifying cruise you'll ever take. They give you a barf bag when you walk on board. Nick Frost