&co.

Litterally, ‘ and company’. A lot of times used after the main character of a video-game to denote his\her sidekicks.

Can’t wait to see Sora&co. in *Kingdom Hearts II*!!

by Victor Van Styn August 26, 2005

Cos

Expression of 'cosine' in an actual math problem.

'Cos' is prounounced 'cosine'.

by Diggity Monkeez March 4, 2005

co

Short for "coo," which is short for "cool." It is used as a positive acknowledgment or a signal of approval, not as an adjective.

Proper use:
"Hey, we're going to meet up with Jimmy at six."
"co"

Improper use:
"Get the fuck off my sister"
"Yo man, be co"

by d c a January 28, 2008

CO

A shortened version of the adverb "coldly" used in hip hop culture which is often used merely as an extra syllable in hip hop lyrics and means "just" or "simply."

I was co shootin' some hoops before I went to co get ill.

by Andrew January 21, 2006

COS

abbrev. for Chill Out Slut; used when firing out the word "slut" is inappropriate, i.e. in a grocery store, courthouse, workplace, in front of children, etc. Encouragement for someone to relax, settle down, get out of your way, shut the hell up, etc.

Crazy bitch: "Did you hear about this and that and the other thing and this other thing and that person and what she did and he said and about what color underwear I'm wearing and what kind of weave do you have and where did you get that purse and did I tell you...."

Me: "OMG! COS! Seriously!

by COSsayer April 16, 2011

coing

When two or more people are going somewhere. You are not going, you are coing...

"Where will all you guys be tonight??"

"We are all coing to the movies."

by prinksmadge March 31, 2010

COS

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 7, 2013