I actually don’t know what you mean. But you haven’t left much room for clarifying questions or uncertainty.
The statement should really be wiped from our vocabulary. The change doesn’t need to be drastic, but framing the statement as a question, “Do you know what I mean?” and leaving room for discussion would be helpful.
Too often we don’t create spaces that don’t allow for honesty if we lack comprehension.
Hearing “I don’t know” and “Could you explain that again?” are great signs. It shows people want to truly understand. It acknowledges that it takes time to grasp difficult concepts.
Take your time and make sure understanding exists before you rush on to the next topic.