noun
- a person regarded as stupid or slow-witted
Usage: informal; derogatory; chiefly North American
Examples
- He called himself a dumbo for forgetting his keys again.
- Don't be such a dumbo—that was an easy question.
- She felt like a dumbo after making that obvious mistake.
- The kids teased him, calling him dumbo because he kept tripping.
- I felt like a dumbo when I realized I'd been looking for my phone while holding it.