What are the current useless terms in this "audio world"

Snake Oil... If it works for you, it's the greatest thing in the world. 
"Try it you'll like it"  (you older folks will remember this one although nothing to do with audio).

A term I don’t like, but doesn’t squarely fall under “useless” is “high end” audio. I much prefer “high fidelity” audio because I can tell that to those not in our hobby “high end” is interpreted as we are more concerned about price and bling than what is most important - the pursuit of high fidelity sound. I for one am certainly not seeking out “high end” audio when looking through this perception lens.

Natural Sound

Full loom
Unequivocally

I am not a native English speaker, so I pay attention to different things than native speakers. These words constantly pop up in audio related articles and discussions.

The first one is a strange expression and almost exclusively used in audio talk. 
The second is a word which should be banned. 

fynnegan,

I don't understand your comment. Unequivocally is a perfectly useful word in the right context, and has nothing to do specifically with audio. Why should it be banned?
Full loom refers to using one brand of wires exclusively for interconnects speaker cables power cords etc. What's so strange about that?