Top Definition
When segregation was practiced in the Southern United States a person that was even the smallest percentage black was simply considered black
Barack Obama is technically biracial but according to the one drop rule he would have simply been considered black.
by Mr.Juan-derful September 12, 2010

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if you have even a "drop" of blood from a race, it makes you partially that race.
"Dude you cant say the n-word your not black."
"One drop rule nigga im a quarter black!"
by enlightend 1 December 12, 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