Top Definition
Any of the students from the Mark Twain School for "Special Kids". Any Mark Twain kid that got arrested or in juvenille court system.
I heard he's a Twainiac, he stole a few cars before coming here.
by GBurgNupe August 24, 2004

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A current or former student of the Mark Twain School for problem kids in Rockville, Maryland. Any student of an alternative school.
You can see twainiacs being arrested on "COPS" or on "Jerry Springer"
by K Joyce September 18, 2007

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A former student of the mark twain school, which featured grades 7 through 12 and offered kids who were coded as emotionally disturbed (nutty) a place to run amok with other such unbalanced and often dangerous fools. The school is located in rockville Maryland next to a large forest area. Staff members often restrained students physically then went home and masturbated to the memory of it. Mark Twain would be the last place you might want you're child to end up unless you were grooming them for a circus side show act.
That child just beat up that other child with a trash can, i think they might send him to Mark twain, what a twainiac he will be indeed!
by truth fan November 03, 2009

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A fan of country music star Shania Twain
Twainiacs were thrilled when Shania took to the stage.
by Greg Davis August 09, 2007

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt