Top Definition
The act of spending the entire day wearing the pajamas you wore to bed the night before. Usually associated with children, college students and the elderly.
"I was going run errands but decided to take a Hef Day and watch football."
by utlax October 18, 2011

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary 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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