1. A strange condition in which a person, usually male, begins to lose their sanity, eventually beginning to believe themselves to be an ox.
That dude was diagnosed with Boanthropy the other day.
No wonder, his mom's a cow.
by Valher November 03, 2009

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Top Definition
A type of insanity in which a man thinks he's a cow and/or an ox.
This expalins itself about as much as it could.
by Chris Younker December 07, 2003

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.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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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