Top Definition
1. The buttocks or bottom region of a person that has a Beef like appearance and/or texture.

2. A diaper, soiled primarily with beef or a beef like substance, known to many "scientists" to have special properties and capabilities. If injected directly into your veins, you may develop large regions of beef in your cranial, optical, and pelvic nerve muscles effectively creating a space-time paradox in your trouser pants.

3. The word used in certain unique and obscure mating calls.

4. A strong, muscular man, wearing a diaper.
"Beefdiaper!!" "Mary has a beefdiaper!!" " That baby is a beefdiaper!!"
by BoB NoRt June 25, 2008

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

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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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1. The buttocks or bottom region of a person that has a Beef like appearance and/or texture.

2. A diaper, soiled primarily with beef or a beef like substance, known to many "scientists" to have special properties and capabilities. If injected directly into your veins, you may develop large regions of beef in your cranial, optical, and pelvic nerve muscles effectively creating a space-time paradox in your trouser pants.

3. The word used in certain unique and obscure mating calls.
"Beefdiaper!!" "Mary has a beefdiaper!!" " That baby is a beefdiaper!!"
by Bob NoRt March 03, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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