In "Looney Tunes" cartoons, Foghorn Leghorn is an anthropomorphic white adult Leghorn rooster who appears in at least 29 Warner Bros. cartoons. The character of Foghorn Leghorn was directly inspired by the popular character of Senator Claghorn, a blustery U.S. Southern politician played by Kenny Delmar. The first half of his name is a joke about him being loud and obnoxious, while the second half refers to the breed of chicken (a white leghorn).

This rooster adopted many of Claghorn's catch phrases, such as "That's a joke, ah say, that's a joke, son." Delmar had also based the character of Claghorn upon a Texas rancher who was fond of this particular saying. Unlike some of the other Looney Tunes characters such as Bugs Bunny, Daffy Duck, Porky Pig, Tasmanian Devil, etc. having worked his way up to be a rich entrepreneur and adventurer, Foghorn refuses to see the negative in any situation, no matter how obvious it might be.

Foghorn Leghorn wants to be seen as a cool guy, a hipster, and someone that no one else can outsmart. He is the big man around the barn. Without him, life would have little or no meaning. We couldn't watch the diminutive Henery Hawk's attempts to catch and eat Foghorn, Foghorn's gags on his canine nemesis Barnyard Dawg, and finally the rooster's efforts to woo the widowed hen Miss Prissy.

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