.co 

A new domain name extension that rose to popularity in mid 2010 due to an overwhelming majority of youth (mostly American) who couldn't be f*cked typing the letter 'm' for the previously popular extension '.com'

dotco (.co)
i want to visit the apple website...
www.apple.com WRONG
apple.com WRONG
apple.co WIN

.co by mike nn July 20, 2010

.co 

Keeping dotcom company

I'd be more than happy to .co your site for a while.

.co by Hercolena Oliver April 19, 2009

CO 

Corrections Officer, ie, Prison Guard.

The CO's put the joint on lockdown...

CO by Slick Willy May 13, 2005

CO 

A term used to refer to a corrections officer.

Shithead CO's often turn a blind eye to jailhouse violence.

CO by Tim April 10, 2005

co 

Short term in the military for Commanding Officer.

Where can I find a CO?

co by Bobby De Niro August 4, 2004

/co/ 

The Comics & Cartoons board over at 4chan.

Regulars of the board are called /co/mrades.

Often at war with /v/ (Video games) but I don't partake in those.

Better than the shithole they call /b/ will ever be.

/co/ is...um...oh fine, YOU come up with a better example then.

/co/ by Gravija May 15, 2008

/co/ 

Comics and Cartoons board on 4chan. Inhabited by:

* Fanboys of My Little Pony, Adventure Time, The Regular Show, and Homestuck (the en vogue series as of May 2011) whom will flood the board with general threads.

* Adult men who idolize comic book superheroes.

* "Nostalgia goggled" anons who think 80's - early 00's cartoons are some of the best ever simply because they were childhood favorites.

* Trolls who post fetish drawings or laughably terrible deviantart drawings.

Typical /co/ thread

OP: What was the best cartoon ever? I vote for Dexter's Laboratory. (pic is most likely a fetish image of an anime Dexter getting his feet tickled by a foot fetishist)
Anon #1: Ed, Edd n Eddy was the best cartoon ever made!
Anon #2: lol faggot. Pre-movie Spongebob was!
Anon #3: Adventure Time is, no contest.
Anon #4: newfags, Looney Tunes was.
Everyone: >>Anon#4 take off your nostalgia goggles nigger! (irony)

/co/ by Phil Bi The Science Guy May 31, 2011