A disease-like state of feelings which can only be discribed as "OMG!"

Typically occurs when:
1. Ones mind is blown
2. Exciting news/gossip is discovered
3. Something unbelievable happens
Girl 1: "I'm suffering major OMG Syndrome right now..."
Girl 2: "Why? What happened?"
Girl 1: "I just found out that Mitch and Kaylee have something going on!"
Girl 2: "OMG! REALLY?!"
by C3POhbaby January 9, 2010
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A disease that afflicts girls who acquire a boyfriend and ignore every other person in their lives except for their significant other. They spend every moment possible with this person, much to the annoyance of their friends.

A girl with OMG!Boyfriend usually doesn't notice she has the disease until said boyfriend breaks up with her two years later and she's left alone and friendless.
I was supposed to go to the mall with Sarah, but she bailed on me to hang out with Steve. She has a horrible case of OMG!Boyfriend Syndrome.
by PinkertonChr July 2, 2009
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When you're on facebook and every page that pops up you have the urge to like it because you think it relates to your life.
::watch update statuses::

"Flocka M. Dougie liked---- hangover is actually the most quotable movie ever.....

You- OMG THAT'S TRUE.....::likes page::
friend sitting next to you- You totally have OMG that's true syndrome.
by Noee August 20, 2010
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