One who is the fattest individual among his group of friends or peers. This individual often does not believe he is fat and will accuse others of being more fat then himself. Often has a skinny body but an enormous gut.
Dear God, have you seen 120, that guy is a FAT BOI. His pre-bed beers have really caught up with him. Disgusting.
by Fatso120 August 5, 2019
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A fat, or well-stuffed, joint
Roll me a fat boy, my good man!
by R-2 D-Tox November 8, 2005
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A term used instead of 'fuck buddy' to help the conversation sound more innocent.
ellen: sally, will you be my fat boy?
sally: sure.
by berry :-) December 30, 2006
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Common Insult used by Bums to insult Nick Glenn. Gesture often used while saying it is Pointing and twisting wrist
Fat Boy! Fat Boy!
by Ryan Guthrie June 10, 2003
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a rag or towel used to wipe sweat
Man that party is gonna be packed and hot, Im gonna bring a fat boy
by chapstick chad July 11, 2008
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Someone who is not realy fat but acts fat by being lazy. If they are angry you can ask them if they are on a diet.
Person 1: hay whats up Fat Boy?
Fat Boy: Go away im pissed off.
Person 1: whats the matter did you start a diet?
by Vince V. May 31, 2007
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