dumbbell
//ˈdʌm.bel//
Noun
dumbbellSingular
dumbbellsPlural
1
A short bar with a weight at each end, used for exercise or muscle building.
She lifts dumbbells every morning to build arm strength.
Synonym
Noun
dumbbellSingular
dumbbellsPlural
1
A stupid or foolish person.
Don't be such a dumbbell—read the instructions first.