SIN actually stands for Sexy Irish Nerd. By definition all irish guys are sexy; however, only a elite few are actually sexy irish nerds.
by Dave (aka "THE SEXY IRISH NERD") May 05, 2004
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.
by Zandroid August 19, 2017
by kirbykirby64 October 16, 2011
"Solo in neglection" an outcast of a crew, gang, group, or simply an individual that is anti everyone.
by Fergisun November 05, 2007
"Hey dude, get off the .sin, it's making us lag."
"I'm feeling frisky, I'm going to watch some .sin"
"I'm feeling frisky, I'm going to watch some .sin"
by Uruwashii November 29, 2009
by someone on the date of : April 17, 2019
by SiN|YourMom December 15, 2003