Hummer (noun)

1. A powerful car or motorcycle.
2. A person who hums a lot.
3. A brand of military vehicle.

Origin:

Late 20th century, this word could have different origins: 1. hummer : as a short form of humvee, a brand of military vehicle 2. hummer : as a slang term for a powerful car or motorcycle 3. hummer : as a slang term for a person who hums a lot.

Examples:

1. He drove a hummer, it was very loud.
2. She was a hummer, she hummed all the time.
3. The soldiers were riding in a hummer.
4. The hummer was very expensive.
5. The hummer was very fast.