Learn how to say Popper correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word popper:
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.