Curse of Shadows. A spell used by the warlocks in World of Warcraft.
Put CoS on him, naab!
It means change of subject. It is used more in the mediated communication genres such as texting, pming, iming, emailing, smsing, picture messaging, blogging, and ect...
Lisa Smith: Do these pants make my butt look fat?
John Smith: Hey babe, COS
, we are going to be late if we don't leave right now!
Cup. Of. Sugar. A definition for a girl that is so hot that you would actually date her. You would go to her dorm/residence and make the excuse "i just needed to barrow a cup of sugar" because she is so hot.
Guy #1: Dude I went over to that cos's house today
Guy #2: really? she is so hot.. good for you
It means the passing of stool. Its origin is derived from Bill Cosby.
"Yo man I gotta drop a cos!"
a term in Hebrew for "cup"
Miriam has a big cos.
a runescape clan, that likes to explore each others dungeons, also means "Council Of Saradomin"
person 1: dude, we went to war with you guys last night, you guys raped us! Cos: why, yes we did