What is the meaning of Catfish?

Any fish of the order Siluriformes, mainly found in fresh water, lacking scales, and having barbels like whiskers around the mouth.

The meat of such a fish, popular in the Southern U.S. and Central Europe.

To fish for catfish.

Someone who creates a false profile on a social media platform in order to deceive people.

Such a false profile.

To create and operate a fake online profile to deceive (someone).

Source: wiktionary.org