A mental disorder in which there is a chemical imbalance in the brain.
It really sucks a lot. I keep thinking the world's going to end and every time I hear an airplane or any noise I keep running to my window and stare outside until it goes away because I think it's an asteroid.

I also hide food because I don't want people to think I'm fat or get yelled at by my mom.

It's a very, very depressing disorder and I hate it very much.
I take a small dosage of Anafranil for my OCD.
by Big Gr'rl October 9, 2006
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obsessive-compulsive disorder

caused by a brain chemistry imbalance. causes obsessive thoughts, illogical thoughts, the need to clean or wash inordinately, not wanting to touch things, the need to hoard or order things, the need to check things (locks, making sure you didn't run someone over, etc.) Can be treated with cognitive-behavioral therapy and drugs called SSRI's (selective seretonin reuptake inhibitors), such as Luvox and Zoloft. see anxiety disorder
I take Luvox for my OCD.

Because of my OCD, I cannot touch doorknobs in public bathrooms.
by Amelia April 5, 2004
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OCD stands for Obsessive-Compulsive Disorder. This is a mental disorder in which the person thinks about something repeatedly (obsesses) or does behaviors repeatedly or carefully, out of his control (a compulsion), such as checking over and over whether the oven is turned off, washing hands more than once, or counting swallows of water when drinking.

This is used as a verb to indicate acting like one has OCD, or behaving like a person with OCD.
Whenever I get any important new medications from the pharmacy, I OCD and count all the pills, to be sure the pharmacist gave me the right number!

After my roommate talks to her boyfriend, she OCD's all evening about whether she might have hurt his feelings in any way.

I hate parties because I OCD about my acne!
by Embroidery Fan June 12, 2017
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Occasional Cunt Disorder. Most commonly affecting men, and most likely to strike when they've been drinking and their good for nothing sports team have lost. Symptoms include sneering at lifelong friends, ignoring the person who is speaking to you, laughing humourlessly at someone who is just trying to be nice and picking one person to humiliate. The cure is usually to sulk moodily in a corner for a while, but the drastic measure of a slap to the face is sometimes administered.
"Sorry about last night Baz. Didn't mean to tell your mum that story about you being caught wanking by a busload of nuns. A bit of OCD I think."

"Leave him alone to sulk, miserable bastard. It's a good job it's only OCD, or I'd kick his head in"
by MagickDio March 2, 2010
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A compulsive disorder caused by a fluid imbalance in someones brain. It is the most difficult mental disorder to live with because you have to fixate on one thing and cant leave it until something else worth fixating on comes up. This is why people with OCD tend to be smarter than some without it.
God, my OCD was acting up today. I spent an hour watching Teletubbies until the doorbell rang.
by awesome124567890 October 9, 2010
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Obsessive Capaldi Disorder.
Being obsessed about actor, Peter Capaldi
MAT: Dude I have OCD.
DUDE: WTF yur obviously lying.
MAT: NO! I have Obsessive Capaldi Disorder.
RANDOM WHOVIAN: DUDE ME TOO!
by artfoxMS April 6, 2015
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