1 definition by max636

Top Definition
n. When the fabric on the butt of jeans stretches and no longer fits tightly. Called "diaper butt" because of the baggy appearance, similar to a diaper full of poop.
Term can be applied to swim suits.
"Aw man, I haven't washed these pants in about 3 days. They're all stretched out and look like diaper butt."
by max636 May 18, 2008

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