1 definition by Manny3434343

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

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