Catfish (noun)

1. A freshwater or saltwater fish with a long body, whiskers, and a broad, flat head.
2. A person who creates a false online identity for the purpose of deception or trickery.

Origin:

From the middle english word "cat" meaning "cat" and "fish" meaning "fish".

Examples:

1. The fishermen caught several catfish in the river.
2. The catfish was a popular dish at the restaurant.
3. The catfish swam gracefully through the murky water.
4. The catfish was known for its unique appearance and flavor.
5. He was shocked to learn that his online girlfriend was actually a catfish.