Occasional Cock Sucker
I knew Kevin was an OCS by the way he always wanted to be alone with Josh.
by shellhunter June 11, 2011
An acronym for "Original Chicken Sandwich", which is the deal of the day for Tuesday at Burger king.
maen: Are we goin for an OCS?
maen 2: I already went with the boys during spare
maen: You fuck! Wait till lunch to go for an OCS sesh!
by Kayounit May 09, 2006
OCS is commonly recognised in the UK as the "One Complete Solution" company and their vans are often seen of the roads of our major citys. According to some muppet in the USA, OCS also stands for "Original Chicken Sandwich" and uses the example of "I really fancy an OCS"

As any self respecting porno-mag reader will know, OCS stands for "Open Cunt Shot" - a standard pose of your hardcore porno models where they lie back and pull their pussy apart for the camera.

I suggest our American friend doesn't use his example whist on holiday in the UK as he could end up with a well thumbed copy of Whitehouse being slipped into his sweaty palms!!
Jeesus, check that OCS out

Whilst in the bedroom with your good lady; "Come on luv, stop mucking about and give me an OCS"

(snigger) "There's the OCS Van!!)
by Threedeckwizard July 27, 2006
"only child syndrome"

the act of hogging everything to yourself as if you were an only child.
"i was trying to play x-box, but billy has OCS and wont let me play."
by jenna taliah March 12, 2009
Only Child Syndrome - A person that has no brothers or sister. Has an extreme sense of possession. Always needs to feel like he or she is the best and most accomplished. Needs to be reassured of his or her superior standing constantly. They also use the two "M" words a lot "My", "Mine". This person will lash out and become defensive if they are called out on any of this "OCS Behavior".
John: "Can I use your pencil for a second."

OCS Person: "No it's mine."
by Doctor Kenneth Noisewater September 19, 2008
When spoken pronounced "oh-cheese". OCS stands for Only Child Syndrome. People with OCS are often only looking out for themselves. They disregard other people's plans, feelings, and ideas in favor of their own, and often change their minds, even after making "definite" plans. They're usually indecisive, as well as bipolar when it comes to relationships.
Person 1: "Hey, do you want to come to my house? We can get a ride."

OCS Sufferer: "No, I don't know, I want to be in NATURE right now.."

P1: "Um well....we could hang outside..."

OCS: "No no NO!...I don't know...I'm gonna go...maybe I'll come to your house later..."

P1: "But...we have a ride now!"

OCS: "Well I don't know what I want to do!!! I don't have allergies, so I'M ok here! Ugh!!!
by coolest people in the world April 03, 2009
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