n.
1. Elevator music
2. any generic commercially produced music for public establishments such as dentist offices and grocery stores, etc.
1. Dude, this musac is giving me a friggin headache, buy me an ipod, jeff.
2. Listenin to musac, hearing people scream, sittin in the waiting room reading crappy magazines (-Weird Al)
by J-rod January 26, 2005
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1.The really bad music that you hear in elavators(also suprising similar to porno music)

2.A word used in replacement for music to generally piss people off.
1.guy1-did you hear that lame musac in the eveavator?
guy2-yeah,it reminded me of a porno i watched last night

2.guy1-hey what musac are you listening to on your iPod?
guy2-Err dont you mean music?
guy1-yeah thats exactly what i said,musac!!
guy2-WHAT THE HELL ARE YOU TALKING ABOUT YOU MORON THE WORD IS MUSIC AND YOU ARE SAYING MUSAC
guy1-i have been saying music all along,you are the 1 who says musac i just wasn't gonna bring it up
by namorfa May 26, 2007
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stupid new zealand school administration software that is badly programmed and always crashes. Its really gay and they put updates out every other day.
Office Lady: "I can't get into Student Manager"
IT Guy: "That's MUSAC, Snakes on a plane... snakes on a mother fuckin' plane"
by musac August 31, 2006
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