Definition of "catfish" []

• Any of numerous scaleless, chiefly freshwater fishes of the order Siluriformes, characteristically having whiskerlike barbels extending from the upper jaw. Also called regionally bullhead, mud cat. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Much of that 'catfish' in Mississippi is secretly Basa fish from China these days, especially on the buffets at the casinos along the Gulf Coast, were they don't have to call it catfish (which they aren't supposed to do) but just let people assume it is."
• "In the episode, law-enforcement officers use a gadget they called a "catfish" to track cellphones without a court order."
• "Shouldering that catfish is almost more impressive than catching it in the first place."