1. Pretentious, affected, or overly refined; sometimes used to describe effeminate or homosexual men
   "He thought the waiter's bow tie was a bit poncey for a casual restaurant";
   - poncy [Brit, informal]

See also: affected, camp [informal], campy [informal], cissy [Brit, informal], effeminate, emasculate, epicene, sissified [informal], sissy [informal], sissyish [informal], unnatural