1 definition by AdamWW

Top Definition
1. An enormous, dense, tightly packed mass of poop capable of achieving mass destruction by means of toppling trees, buildings, and the American dream.

2. Big/big round poop.
1. Today at work I sit down, then I dropped a butt boulder in the trash can.

2. This is a heavy butt boulder, daddy, what did you eat?

3. Would someone please tell me what "butt boulder" means?

4. Do me in the butt, then eat my butt boulder.
by AdamWW December 16, 2005

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