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-Disease affecting preppy girls (usually taking some kind of dance class) who think because of the song Sk8ter Boi by Avril Lavigne, they have to find a punk/emo/scene guy to satisfy their obvious downhill progression because he will save her with his 4-chord riffs and badly written lyrics about other girls.
Football player: Hey, I think I'm going to ask that cheerleader Stacey out.

Football player's non-athletic intelligent friend: Nah, man don't waste your time, I heard she's got Avril Syndrome...she goes for those emo kids.

Football player: Gay...
by Mareas May 22, 2008
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