noun
- a person who behaves in an extremely wild or violent way
- a person with an extreme enthusiasm for something
Usage: informal
Usage: informal
Examples
- The driver was speeding like a maniac through the neighborhood.
- He’s a complete maniac when he gets angry.
- She’s a fitness maniac who exercises three hours every day.
- My brother is a video game maniac.
- The maniac was finally caught by police after a long chase.
- He’s a maniac for collecting vintage records.