Completely insane or inane theories, often dreamed up by paranoid schizophrenics, conspiracy theorists, and ChristianConservatives.
John's ramblings and crackpot theories about UFO's were completely disregarded by his peers.
by b_Alister May 06, 2010

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Top Definition
a statement or idea (not necessarily presented by a crackhead) that is extremely extensive in nature and ridiculous in realilty.
often preceeded by: "i believe", or "don't you think", or "whould it be a good idea to...."
(often presented under the influence of drugs)
person1: the free masons rule the world
person2: thats a crackpot theory if i ever hurd one before
by dawordspecialist June 25, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

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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.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

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