1 definition by EniBelle

A very common disease that is often displayed in Politically-Correct People.

One typical example of this is when a chorus sings a patriotic song such as "The Star-Spangled Banner", the audience thinks they should stand up and sing along just in case anyone wants to question their patriotism. Quite hard to cure, highly amusing.
Random movie theater audience member: Wow, that was such a great movie that I think I'll get up and clap!

*the whole audience notices and does the same*

Another more sensible audience member: ...They do know that they're applauding at an inanimate object, right?

Me: Poor souls, they've been inflicted with Herd Mentality.
by EniBelle April 13, 2010
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