When you twerk really badly and you uncontrollably stick your tongue out in pictures.

Also, you touch yourself sensually in front of other people. Can infect guys too.
Jim: Hey, what's up with Brianna? Why is she sticking out her tongue while twerking horribly?
Rafael: (whispering) She's got the Miley Cyrus Virus.
Jim: Oh, that explains everything.
by Jeaneth February 21, 2014
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When someone acts out of control on the dance floor,or in an argument
OMG..look at that silly bitch?! Twerkin' in the middle of the street. She's acting like she's been Poppin' Miley Cyrus.

Girrrrrrrrrrrl,check out that chick on the dance floor. Shaking her ass and sticking her tongue out. She must be Poppin' Miley...Cyrus that is.
by Wheezin' Joc August 29, 2013
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A nickname given to Miley Cyrus by the Haters of Miley Cyrus because she sucks so bad, is an ego maniac and a turd skank.
Where goes Miley Cyrus Suck.
by Judge dredd7 July 29, 2011
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A phrase used to describe someone who is rocking out to a song that is clearly in the genre of pop. This was most recently seen on American Idol when she spent half the song singing with hair in her eyes and showing the camera her tonsils. If you catch any of your friends pullling a miley cyrus hit them and call them a "STD infected Nick Jonas stalking whore with a bad lisp." If they continue seek immediate medical attention.
Friend- Dude stop pulling a miley cyrus we're listening to Halo. Your such an STD infested Nick Jonas stalking whore with a bad lisp.

Just watch her performance on the latest American Idol in super slow-mo for the best example.
by spf20 April 16, 2009
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Also known as MCF, a condition in which you are so hot or horny for miley but you know its wrong cause shes still only like 16 or something, but shes really fuckin hot and you want to do her anyway.
"One day I walked into Jim's room and saw Jim Masterbating to Miley Cyrus and I went up to him and said "Dude, the whole time I've been masterbating to Megan Fox I could have been jerking off to Miley Cyrus?" and then Jim said, "WTF im not done yet, this is my Miley Cyrus Fantasy, get the fuck outta here!"
by AxDk March 15, 2010
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When you have double life, as Hannah Montana does. In Extreme cases people have been now to spontaneously burst into song about how fabbity fab fab their life is.
OMG, I think I have Miley Cyrus Syndrome!
How come?
Because I keep SPONTANEOUSLYYYYYYYYYYYYYYYYYYYYYYYYY....
by ILoveBritishTea8 July 29, 2009
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When one proceeds to smoke a bowl of salvia, then run around naked singing "wrecking ball" while destroying the surrounding drywall.
the party was going great before Joe had a Miley Cyrus incident
by Kazakhstanrocks May 27, 2017
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