TMN: stands for This Means Nothing. I use it in meetings where people use 3 letter words all the time and I have the feeling not everyone understands them.
When I get that feeling I say something like.
“I agree with you, but did you think about TMN? “
A lot of people just continue without loosing a beat, yes, that is not a problem because ….
After a little discussion I ask them what TMN means. When I explain it, they get my point.
In other meetings I will just bluntly say I don’t understand this or that acronym, even if I know it but suspect others don’t. In a lot of meetings I get different answers from different persons. Usually when they agree what the 3 letter word means, the other discussions are over.
I don’t mind making a fool of myself if that means I save the face from someone else. In my experience, TMN works better because people realize more there is a problem with using acronyms without explaining them.
That is why on the projects I coach, I ask to make a list of all the abbreviations. It gives a lot of discussions at the beginning of the project, but it saves a lot of anger afterwards.