"Catfish" is no longer simply a river dweller, but rather a verb defined as "to pretend to be someone you're not online by posting false information, such as someone else's pictures, on social media sites usually with the intention of getting someone to fall in love with you, " according to the MTV show of the same name.
To his mind he was no more a thief of Nature than when, a country boy during the Depression, he had hooked 20-pound channel catfish, now long gone, out of the Chattahoochee River.