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.

(Internet) Someone who creates a fake profile on a social media platform in order to deceive people.

(Internet) Such a fake profile.

To fish for catfish.

(Internet, slang, transitive) To create and operate a fake online profile to deceive (someone).