Top Definition
The fat one is the proverbial "big, fat cock," usually used to describe something bad, often added on to "sucks" or "blows".
1:That song blows the fat one
2:this party sucks the fat one
3:it licked the fat one

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The Fat One, is what i have and what you love to eat in your spare time.
Yeh you love The Fat One.
Eat The Fat One bitch.
Why dont you just go eat The Fat One..
by DaN` July 08, 2003

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