The hand-puppet belonging to homosexual/transsexual/homosexual again South Park school teacher Herbert Garrison.

Mr. Garrison has often used the doll as an expression of his own repressed feelings or beliefs, including homosexuality while he was still closeted and his racist leanings when Mr. Hat was a member of the KKK. More commonly he is used as a teacher's aid via ventriloquism.

Due to Garrison's southern drawl, he pronounces the name as "Mister Hay-ut".
Kyle: Mr. Garrison, seriously, I have to go. Can I please be excused from class?

Mr. Garrison: I don't know, Kyle. Did you ask Mr. Hat?

Kyle: I don't want to ask Mr. Hat, I'm asking you!

Mr. Garrison: Oh I think you should ask Mr. Hat.

Kyle: Mr. Hat, may I please be excused from class?

Mr. Hat: Well, Kyle. No!! You hear me?! You go to hell! You go to hell and you die!
by zackpliskin November 8, 2009
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He who has come a long way. He sleeps in the Hatcropolis and can also be found playing catch while using California Style
Ooh Mr. Hat! We love you!
by the macstablishment August 31, 2006
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The most fucking pwnage you could ever fit into one name. Usually spotted haxxing websites or raping toddlers.
Why cant I log into my account?

"Mr. Hat" was here again.
by HATTZORZHATM8 August 8, 2008
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a drug dealer working above the nickel and dime level, and typically keeps his buisness quiet.
Hey nigger, I got the bomb connect...

"Who?"

Well, let's just say his name is Mr Hat, he prefers to stay annonomous.
by Eapert McDangles June 11, 2006
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A slang term for a male human that never had the foreskin in the top of his penis removed at birth (uncircumcised)
Haha Mr Top Hat is over there with all that cheese
by neonbreezeplus March 26, 2019
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