Entry 2 senses · 2 variants Webster, 1913 Popper /päp'-ẽr/ · Pop·per · IPA /ˈpɑ.pəɹ/ n. n. 01 n. A utensil for popping corn, usually a wire basket with a long handle. 1. A utensil for popping corn, usually a wire basket with a long handle. 02 n. A dagger. 1. A dagger.[Obs.]