popperPronunciation: /ˈpɒpə/Translate popper | into German Definition of popper noun 1British informal a press stud. 2 informal a small vial of amyl nitrite used for inhalation, which makes a popping sound when opened. 3(in fishing) an artificial lure which makes a popping sound when moved over the surface of the water. 4North American a utensil for popping corn. popper in other Oxford dictionaries Definition of popper in the US English dictionary