Top Definition
You have a fat butt. Your booty is big and having it means that some guys are going to stare at it alot. Plus there going to yell and say things about it. Be happy if you do got one most girls don't...
When a boy yells out " Hey, you got a FATTY!

"Girl in the pink jacket you got a fatty"!
by Anglewood November 24, 2013

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