dumbbell /ˈdʌm.bɛl/ noun3 •A weight training implement consisting of a short bar with weight counterpoised on each end.He was exercising with the dumbbells in gym class today. •(slang, offensive) A stupid person.That's fool's gold, you dumbbell. Iron pyrite. Nobody would give you a dime for a ton of it. — 2015 •(no longer used) A bell with no clapper, used as bell-striking practice or to strike as a form of physical exercise formsdumbbells
