joker [jokerjokers] BrE [ˈdʒəʊkə(r)] NAmE [ˈdʒoʊkər] noun 1. a person who likes making jokes or doing silly things to make people laugh 2. (informal)a person that you think is stupid because they annoy you 3. an extra ↑playing card that is used in some card games, usually as a ↑wild card Idiom: ↑joker in the pack
Word Origin: early 18th cent.: from the verb ↑joke + ↑-er.