klutz

noun
UK /klʌts/
US /klʌts/

A klutz is a person who often drops things or bumps into things by accident.

My brother is such a klutz that he tripped over his own feet.


OTHER MEANINGS

2. Someone who is awkward and ungraceful in movement.

She felt like a klutz on the dance floor.

3. A person who often makes careless mistakes.

Don't be a klutz with those important papers.

4. A foolish or stupid person.

He called himself a klutz after forgetting the tickets again.