SIHS
Song Infected Head Syndrome
When a song gets stuck in your head and you can't stop the silent singing/beat even though you really want to.

SIHS...You take the good, you take the bad, you take it all and there you have the facts of life...

SIHS Love me, hate me, say what you want about me, but all of the boys and all of the girls are begging to if you seek Amy...