Definition from Wiktionary, the free dictionary
cupper (plural cuppers)
- (medicine, archaic) One who performs the operation of cupping.
- (slang) A coffee aficionado.
2008 May 29, Hannah Wallace, “Do I Detect a Hint of ... Joe?”, in New York Times:
- Not every cupper understands all the fuss.
- (Britain, Oxford and Cambridge universities) An intercollegiate sporting competition, open to all colleges.