Its the definition of a person I met yesterday and I started calling him fat boi Jay
OI FAT BOI, GO GET THE FRAGMENT YOU PIECE OF SHIT
by Myabsi November 17, 2019
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When you walk in on your brother waking off and shitting at the same time.
God dammit I just walked in on Drew pullin a fat boi again!
by XxlilriddimkittyxX January 11, 2019
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The fat-boy-cut is a type of haircut that would appear on the heads of fat children in the early to mid 90's. Its a bowl cut placed in a high up position on a completely shaven head. The type that rock the fat-boy cut are usually a couple of guys from your old school, normally the ones that you knew who they were but didn't really know them. For visual aid see Zachery Ty Bryan in a pre-puberty episode of Home Improvement.
"Dude, getting punished by Krampus sucked bad but at least he liked my fat-boy-cut."

Guy 1: "Hey Tom, give ya the usual?"
Guy 2: "Hmmm... no I think i will just have ya give me the fat-boy-cut."
by Hans Muff January 3, 2011
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Someone who is annoying and fat.
Jimmy: What you looking at? I will slap you!
Abdula: Shut up, Jimmy! You are such a fat boy sujj!
by top10soulcrushinganimedeaths November 10, 2019
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What a skinny person refers to as sugary treats that fat people tend to enjoy: cakes, twinkies, cookies, etc...
After a smoke session, one may get the munchies, in order to declare their situations they may say: "Man could I go for some fat boy treats right now."
by Steve Halet January 16, 2008
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A total over reaction from a fat fuck to usually menial situations or people. Common causes of Fat Boy Anger are pent up energy from lack of exercise, excessive, constant hunger (usually when someone is eating something yummy that they can't have in front of them) and/or missing a meal.
Fat Jack: "I CAN'T BELIEVE I RAN OUT OF FUCKING GAS AGAIN!" (repeatedly punching the dashboard of his car)

Tonya: "Dude! The gas station is right across the street. God forbid you burn a calorie & walk there! Your Fat Boy Anger is gonna break us up one day!"
by Urban_Baby_101 January 27, 2014
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A group of fat people that sticks up for the little guy and "takes care of" things for people if they are asked to. Fat Boy Mafia members always stick up for each other. The usual requirement to join the Fat boy Mafia is to do at least one of the following: 1) Be fat, 2) Have a high level of "phatness", 3) Do something worthy of being declared honorably fat.
Skinny guy: That guy stole my books!
Fat guy: We'll get 'em back. Don't worry, the Fat Boy Mafia's got ya back!
by jmasta264 January 26, 2006
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