Bob: Well It was with this real hot chick and I was thinking, yeah I am so getting a blowjob...
Bill: Well did you?
Bob: No when I asked her to do it she was like "I don't do that kinda thing" How fucking lame is that...
Bill: What a fucking muzi man.
Anyone who a) relentlessly bitches on someone for the volume or type of music they are listening to or b) someone who relentlessly bitches on someone because they are listening to any sort of personal music device and/or c) if the Muzi is an authority figure, commonly a teacher, they immediately confiscate said device for as long as they are able to.
Victim: "..fat whore Muzi.."
Old Muzi: "Turn down your damned head-bangin noise!!"