HUMORIST, n.
A plague that would have softened down the hoar austerity of Pharaoh's heart and persuaded him to dismiss Israel with his best wishes, cat-quick.
Lo! the poor humorist, whose tortured mind See jokes in crowds, though still to gloom inclined-- Whose simple appetite, untaught to stray, His brains, renewed by night, consumes by day. He thinks, admitted to an equal sty, A graceful hog would bear his company.
Alexander Poke
--Ambrose Bierce - The Devil's Dictionary