Top Definition
An artificial form of tourette syndrome in which the singing or speaking of a line from a song by one individual produces the spontaneous and not entirely voluntary singing or speaking of further lines of said song by another individual. This phenomenon is most often seen among people in good moods.
When you or your friends have musical tourette's, life is like a Broadway musical.
by TheLastPunslinger May 13, 2005
being unable to control the temptation of suddenly bursting into song
"wtf iz wrong w/you?!?!"
"dude its musical tourettes, i cant help-smack that all on the floor"
"???"
"smack that till u get sore"
by me myself and iiiiii July 23, 2008
To randomly break out in song
Tiffany: "Bye Jenna"

Jenna: "Baby bye bye bye.. BYE BYE"

Kevin: "What's wrong with Jenna?"
Tiffany: "oh, she has musical Tourette's"
by HarryStyles123 June 25, 2015
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