someone who is extremely swagless. also known as swagless oz. literally has no swag whatsoever.
i saw a kid wearing a packers hat and sweatpants and was like wow, what a nosborn.
by Alex Osborn December 22, 2010
1 more definition
A HUGE tool, usually doesn't know what tool means. Generally sucks up to girls with huge butts. Also stabs themselves with hypodermic needles to feel more confident.
WOW Nick is such a nosborn! See how he sucks up to Rachaels Ass!
by bubba claus January 21, 2011