1 definition by Dave (aka "THE SEXY IRISH NERD")

1

SIN actually stands for Sexy Irish Nerd. By definition all irish guys are sexy; however, only a elite few are actually sexy irish nerds.

I am in love with a SIN.

Dave is a SIN.

by Dave (aka "THE SEXY IRISH NERD") May 05, 2004

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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request