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.
the shortened form of the word assasin, commonly used in ragnarok online, maplestory, etc.
eg.
Warrior: damn man, check out that sin, he hell ksed that mage.
Archer: yer man, sins pawn every1!
The act one engages in when one is just finally beginning to have fun.
When finally the hard-working Mennonite had enough money to feed his family, he paused; knowing gluttony to be a sin.
Term used by the spiritual and religious community for 'evil' actions deemed to have a somewhat deserved unforetelling or difficult circumstance. Usually linked to 'fleshly' behavior or desire.
His sinful action caused her to benefit in alimony.
Small Indian Nipples (Basically the opposite of BBTs)
DAAM LOOK AT THE SINs ON THAT GUY