Definitions by jenomi
OCS
Short for "only child syndrome." Can be associated with selfishness, rudeness, laziness, and/or arrogance, but is not limited to these things. OCS may also be accompanied by strange/unexplainable side effects, i.e. excessive computer-nerdiness, knowledge of the names/charicteristics of people who do not know you, the need to bite inatimate objects or others, the need to snuggle with those you have just fought with, the urge to tickle/poke others for no apparent reason, and many other habits that vary by individual.