When a overweight kid/man dresses extremely fresh
Fat Joe might have Fat Boy Swag, maybe Big Black
by Fat Boy Swag December 8, 2011
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Fat Boy Penguin is a epic YouTuber who speaks english and norwegian that is 69% gigachad and makes weird/funny content.
If you don't like his content SuBsCrIbE, if you like his content SuBsCrIbE.
"Who needs oxygen anyways lol" -Fat Boy Penguin
by Verified_Gigachad April 27, 2022
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It's like the layer of sweat a fat person always has that shines in the sun, like a glazed donut.
Tyler- "We just started jogging, you already have a fat boy glaze?"

Brian- "I can't help it, It's hot!"
by Tmanb10 August 1, 2014
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He is just super duper fat! He sucks. He has diabetes, cancer and lots of other diseases now, even he is just 11!
Fat Boi Seven is so fat he was fatter than Yo Mama.
by U r Fat Mama Fat December 2, 2019
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A stain on your shirt; commonly found after eating. makes you look like you eat like a pig.
girl: don't look at my shirt, I spilled soup on it at lunch.

guy: ohhh! you got a fat boy stain!!

girl: ahahahhahahahahahaa...no.
by karly;; May 29, 2008
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A T-shirt that looks good even when one has gained a significant amount of weight. The mentioned t-shirt tends to have a random and/or stupid graphic upon it.
Gerald: Hey, that t-shirt looks really good on you!

Flanagan: Yeah, it's my fat boy special...even though I'm currently fat as hell, this t-shirt makes me look not so obese.
by Mr. Flanagan Peterson November 22, 2011
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Men who were fat when younger, and are now cripplingly insecure about themselves/their relationships may be said to have Fat Boy Syndrome (FBS). A man with FBS may or may not talk constantly about his weight/workout routine and/or his eating habits. He usually also talks about his insecurities ad infinitum. Men with FBS have a tendency to be overemotional, latch on to those who show any sort of interest in them, and be generally annoying.
Man with FBS: So, she says she likes me, but I don't know if she really does! I love her so much, and I'm just so scared that she'll realize she isn't into me....I should really hit the gym later, I'm feeling a little chubby...do these pants make me look fat?

Me: GO TALK TO A THERAPIST ABOUT YOUR FAT BOY SYNDROME!!1!!11!1
by j. rose October 13, 2011
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