1. (noun)joker, jokester a person who enjoys telling or playing jokes Synonyms: joker, turkey, jokester
2. (noun)joker, turkey a person who does something thoughtless or annoying Synonyms: joker, dud, turkey, jokester, bomb
3. (noun)joker an inconspicuous clause in a document or bill that affects its meaning in a way that is not immediately apparent Synonyms: turkey, jokester
4. (noun)joker a playing card that is usually printed with a picture of a jester Synonyms: turkey, jokester