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
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

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