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A song that becomes viral on the internet or on TV due to the fact that it's simply idiotic,stupid,or just plain strange. Some examples would be PBJT! Or the song.
Guy 1: Have you heard about the song Peanut Butter Jelly Time?

Guy 2: Yeah, it's a total idiosongracy.

Guy 3: Agreed.
by Mark3791 May 09, 2009
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