What is Fat-butt?
1.
The proper name of any kind of food that will make one's butt fat.
Fat-Butt in a pan (Brownies), Fat-Butt in a bag (Chips), Fat-Butt in a Bucket (KFC) Fat-Butt in a flat box (Pizza), and Fat-Ass-In-A-Glass (Margarita) etc.
"Pass me another slice of that Fat-Butt. Wow, this is the best Fat-Butt I've had in a long time! No one makes Fat-Butt better than your Mom!"
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1.
the act of slapping someone with your penis so violently they should have died.
"I coofy slapped that bitch!"
See cock slap,..
1.
Like fractional sex, fictional sex is sex you make up to boost your stats (the notches on your belt in other words). Or, it can also be ..