Maneater (noun)

1. An animal that preys on humans.
2. A person who is considered dangerous or destructive, especially to romantic partners.
3. A ferocious or voracious person or animal.

Origin:

The origin of the word maneater is unclear.

Examples:

1. The villagers were warned about the maneater tiger that lived in the nearby forest.
2. She was known as a maneater because she went through men like a hot knife through butter.
3. The maneater was finally captured after attacking several people in the area.
4. The maneater shark was responsible for several attacks on swimmers near the coast.
5. He was wary of getting involved with her because he heard she was a notorious maneater.