GAMMY Meaning of GAMMY in English gam ‧ my /ˈɡæmi/ BrE AmE adjective British English old-fashioned [ Date: 1800-1900 ; Origin: ⇨ ↑ game 2 2 ] a gammy leg or knee is injured or painful Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012