from The Century Dictionary and Cyclopedia

  • n. A local name of a variety of the common trout (Salmo fario stomachicus) of certain parts of Ireland (Galway, etc.), in which the coats of the stomach become thick, like the gizzards of birds, from feeding on shell-fish. Also called gizzard-trout.


Sorry, no etymologies found.



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  • A snail-eating Irish trout whose name derives from the deep red spots on its sides (Giolla Rua is the Irish for "red fellow"). It is apparently the only fish that has a gizzard (of sorts) to aid digestion. This anatomical curiosity lies behind the story that a priest, presented with a gillaroo on a Friday, refused to believe that it was not chicken and would not eat it; ever since, the fish has been considered cursed and unfit to eat.

    February 9, 2007