Top Definition
1. Male who has an abnormally large lower torso area. Enjoys to eat things quickly, preferably so fast he cannot taste them. Enjoys bacon, orange juice, and a good hot bath.
2. Tells ridiculous stories that could never possibly happen to any normal person in real life. No one doubts these stories because a gillerbutt is such a sweet nice guy, you would never think to doubt all of their harrowing tales.
3. Enjoys rousing local fire departments through a series of false fire calls.
Dude, that guy is so fly. What a gillerbutt!

Wow, that story about how you gave your cat CPR is a gillerbutt story!

No worries bro, Rich just pulled a gillerbutt move. No fire here.
by Manny3434343 January 29, 2009

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