Buccaneer (noun)

1. A pirate or privateer of the Caribbean Sea during the 17th and 18th centuries.
2. A person who engages in illegal or unethical activities, especially in business or politics.

Origin:

From the french word "boucanier" which means a hunter who smokes meat over a boucan (a type of smokehouse).

Examples:

1. He dressed up as a buccaneer for the Halloween party.
2. The buccaneers were notorious for their attacks on ships and coastal towns.
3. The company was accused of acting like buccaneers in their business practices.
4. The buccaneers were forced to retire after the government cracked down on piracy.
5. He was labeled as a buccaneer by his critics for his unethical business practices.