Expression of 'cosine' in an actual math problem.
'Cos' is prounounced 'cosine'.
by Diggity Monkeez March 04, 2005
Comfort Over Swag- Usually given to the guy who'd rather wear sweatpants than jeans out.
"John really believes in COS, dude."
"Yeah he was wearing sweatpants and a sweatshirt to the club last night."
by COS pro June 07, 2013
FB? I’m voting/voted 4 my FB frs, 'cos they can COPE with ANCilliated DP etc. With play on political names –yes, I know the election is gone, but since home affairs opened for issueing of ID books after voter registration was closed I can’t foresee this being a problem to prepare early for the next elections.
by Hercolena Oliver June 27, 2010
An abbreviation for Chief of Staff, the best drinker in a group of political workers.
John: Eric was really hammered last night after the fundraiser. He must have had 20 beers.

Jason: Yeah, he’s the COS.
by Bamalama Johnson April 07, 2008
abbreviation for "change of subject"
aim conversaton:
Jimz3213: yeah. i totally banged her sister last night.
Susiexxoox4: yeah well. cos...

how is your moms rehab going?
by SUSIEEEEEEEEE October 24, 2007
Abbreviation for "Chamber of Secrets", the second book on J.K. Rowling's Harry Potter.
"cos is my fav book"
by Raqueli88 September 04, 2006
An abbreviation for cosines
Dude how I find X?
Just do cos 45
by TheOldDragon January 10, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.