An "original character" created by the author, they may be a totally made up character or based on a living person. OC's are a creative way of expanding a fandom bringing their writer's own personal touch on a fandom. OC's give a reader a little insight into someone's imagination and can be amazing #StandUpForOCs
"Have you role played with this OC? They're amazing and so creative!
by StandUpForOCs January 26, 2016
Get the OC mug.
Open Crib. someone's house that the parents aren't home for a party or something like it.
ayy Justin's got a OC Friday, lets go!!

status: my moms outta town this weekend #OC
by taylordevan March 7, 2014
Get the OC mug.
Stands for "original character." A character created by a fanfic author or roleplayer. Said created character does not belong to the canon cast but is inserted anyway for entertainment.

Many OCs appear as long-lost family members, past lovers, or exchange students. These background stories provide alibis for the sudden appearance and previous absences of the OC.

OC may also stand for "other character," in this case representing an extremely minor character, introduced or mentioned but not extremely active in an original series.
I was reading a person's fanfic the other day. It was centric of their OC, but the original character they made up was pretty cool, so I didn't mind.

Ayame is an "other character" from Naruto.
by Madoka July 11, 2008
Get the OC mug.
original content

if you create jokes or memes on teh interwebs and thought of it all by yourelf, you created oc
ITT: we only pots OC!

Here's my OC ! what do you think of it?

You call that OC? i saw this pic weeks ago on reddit!
by pogoagogo April 27, 2013
Get the OC mug.
"Original Character"

Any character created by an individual that is original.
"Who is this person in your drawing?"
"That's my OC."
by OCer August 5, 2012
Get the OC mug.
Out of Control.
Can be used to describe something crazy, extreme, frantic, or wild.
Your OC man! You slapped that bitch.
Man that party was OC.
Stop acting OC man.
by nomas March 1, 2004
Get the OC mug.