Top Definition
A fact which lodges itself within one's brain and refuses to be unlearned or forgotten. Usually, but not necessarily, this fact is of a useless nature.
My high school best friend's telephone number has become an information barnacle.
by mlybrand June 20, 2009

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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

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

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