What does the word catfish mean?

Usage examples for catfish

  1. Anyway, we should bother about fifty dollars, because we had a big string of perch and some catfish. – Roy Blakeley's Camp on Wheels by Percy Keese Fitzhugh
  2. Their destination was a spot far down the river where catfish were supposed to abound, for Izaak Walton's gentle art was the little lamplighter's favorite recreation. – The Just and the Unjust by Vaughan Kester