I'm going to go against the views of the majority of posts in this thread on the word "mint".
If there are any coin collectors out there, you will know that "mint" is one of the most precise and exact descriptors that exists. It is very objective because it essentially describes physical appearance. There is less room for differences of opinion. On the other hand, most audio terms are subjective and relate to perceived sound rather than appearance. They are subject to much greater variability in interpretation. Thus they have less value unless you are familiar with the particular person who uses them and know their reference point.
The trouble that I have with "mint" is that most of the time it is not used accurately. The problem is the person, not the word.
I also have no trouble with "tubelike". I equate it with "fuzzy, warm and distorted due to even order harmonics,... but pleasing to the ear nonetheless". If that is not what is intended by the person using it, then maybe they should be more cognizant of the impressions they are leaving with people with the words they use.
One word which I see fairly often in reviews which I do have trouble getting my head around is "bloom".