Bogeyman (noun)

An imaginary or mythical creature used to scare children, or an object of fear or concern.

Origin:

The word bogeyman is of uncertain origin, but it is thought to have originated in the early 18th century, it may have come from the middle english word "bogge" meaning "goblin" or "bogle" meaning "frightening creature". it is used to refer to an imaginary or mythical being used to scare children.

Examples:

1. He used the bogeyman to scare his little sister.
2. The bogeyman was a character in a horror movie.
3. The bogeyman was hiding under the bed.
4. The government's new policy was depicted as a bogeyman by the opposition.
5. The bogeyman's image was used to scare children into behaving.