/ ˈtʃɒpə(r); NAmE ˈtʃɑːp-/ noun
1.
[ C ] ( informal ) = helicopter
2.
[ C ] a large heavy knife or small axe
3.
[ C ] ( NAmE ) a type of motorcycle with a long piece of metal connecting the front wheel to the handlebars
4.
choppers [ pl. ] ( informal ) teeth