Top Definition
Someone who DOESNT know what a 'Dutty Nerf' is.
Frankie: Your a dutty nerf
Tom: Whats a dutty nerf?
Frankie: Someone who doesnt know what a dutty nerf is.
Tom: But now i know what it is
Frankie: yes, and now your not a dutty nerf.
Tom: but mike is a dutty nerf?
Frankie: yes, mike is a dutty nerf.
by FrazyMay69 March 09, 2011

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