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1.
The sudden out burst of profanities that is released when something unfortunate happens. Most commonly seen when a person stubs their toe.
Shawn had a bad case of Situational Tourette's the other night when he banged his bad knees on the coffee table.

You can't bust into situational tourette's every time you miss the eight ball, man.
by BeerSlinger August 31, 2010
 
2.
accidentally using "key phrases" in awkward situations.
She experienced situational tourettes by saying to her Uncle who is in the hospital dying, " Well, you only live once!"

While talking to a person of short stature she suffered from situational tourettes by saying, "well, I might not be smart, but at least I'm tall!"
by jaw1974 April 02, 2013