Howler (noun)

1. A person or animal that makes a loud, prolonged cry, typically of pain or anger.
2. A mistake or blunder that is so obvious or severe that it causes others to cry out in disbelief or dismay.

Origin:

The word howler is thought to originate from the early 17th century, it is a combination of the word "howl" which means to make a loud, prolonged cry, typically of pain or anger, and the suffix "-er" which means a person or thing that performs the action described by the verb. it can refer to a person who howls or to the animal that howls.

Examples:

1. The howler monkey is known for its loud howling.
2. He's a howler and he always gets into arguments.
3. He made a howler of a mistake and it cost his team the game.
4. The howler was so loud it woke the entire neighborhood.
5. It was a howler of a blunder and everyone was horrified.