1 definition by kd31

Top Definition
when you end up singing random songs that you last heard whether you like the song or not. You might have heard this song in a span of 30mins or a max 8hrs.
w1: hit me baby one more time....(sings)
w2: i thought you dont like that song
w1: i know, im just having some last song syndrome and im tryin to get rid of it.
by kd31 June 02, 2010

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