In fact, in human dialogue, it is often best to reflect back, in your own words, what you think someone has told you, rather than to ask them "what do you mean?" It indicates that you are making the effort to listen, which shows respect, and allows them to provide nuance to their opinion, rather than simply search for other words. After all, when somebody tells you something important to them, I think it best to assume they've chosen the best words that they are able to at the time, and for you to give them your interpretation of those words can often help them see where those words might not have been the best formulation after all.Isn't it easier to ask " what do yoi actually mean by that?"
This works especially well in actual face-to-face dialogue, especially where there is argument or disagreement. Giving someone the acknowledgement that you have actually paid attention to what they've said, by trying to give your understanding of it, is a compliment, and can help lower passions.