We had a discussion on this site not very long ago about the same issue of "dry drunk". I said at the time that I did not believe in the validity of the syndrome as it was used to describe a failure to engage in a spiritual dimension of sobriety.
I was not surprised to be immediately labelled a "dry drunk" by a member. Note that I was criticised for my failure to believe, not for my observable actions....weird.
It is often used pejoratively and it has the power to wound. It is offensive to me and I do wish that instead of sloganeering people would think more carefully before using empty phrases.
Michael