To "mince words" is to speak of something using vague or indirect language. The term is rarely used in the positive form, it's commonly used in the negative to speak of something clearly or directly, for example, "Mincing your words won't spare his feelings" (used in positive); or "Don't mince your words, I need the facts" (used in the negative).
This post was edited by NYAD at August 1, 2019 1:01 PM MDT
Yeah, I saw that definition too. But... to mince actually means to chop up finely. So this is an idiom that makes NO sense. We are not chopping up words finely by using vague language.
To mince words technically would be to take a word and chop it up.
NYAD 