1 definition by Rosie_xx

Top Definition
Abreviation for 'Fat Boy Not Slim'
Derived from the popular DJ Fat Boy Slim and referrs to an overwieght boy. (or he/she)
Jess: OMG there's F.B.N.S!
Rosie: Who?
Jess: You know, that fat kid who looks like a rhino!
Rosie: shit! run before he eats us!!!! :O
by Rosie_xx February 02, 2007
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