Agree with you Purrin about the term musical being a copout.  All it really means is "I like this" and want to use an audio term but don't really know what to say.  Which is fine because describing sound is really hard as you say, but better to be honest, and just say "I like this".  It's a non-descriptive descriptor.  I think most of the time terms like "musical" are followed closely by phrases like "we all hear different" which is another copout. 

PRaT seems similar.  A super technical sounding term that really is just describing a subjective experience and doesn't mean much.  Funny, when that term was brought up i remembered when I first signed up on HF, reading reviews by some of the "big time" reviewers, PRaT was always a term that I never understood and made me feel like a noob.  I'd think "gosh darn these guys sure know a lot of fancy words to describe sound".  I guess that's the point though, and why speaker salesman would use it too. 

How about the references to location in the audience that people frequently use?  Can't remember the exact phrasing.  But I often read people placing headphones in a very precise location in an audience.  Like "the Grados man, I love them cause they put me ON the stage man, the ATH's are like 4 rows back, and the HD650 is just boring, it's way in the back of the concert hall and I just fall asleep".  I'm always thinking ...."what?"  What the hell does that mean?  Maybe I haven't been to enough concerts or something I don't know, it just seems like BS to me.