A piece of equipment used for strength training, consisting of a short bar with a weight at each end.

A term used metaphorically to describe someone as foolish or not very intelligent.

मूर्ख या बेवकूफ

English Usage: Don’t be such a dumbbell; think before you speak!

Hindi Usage: इतने मूर्ख मत बनो; बोलने से पहले सोचो!