I will give you a clue, it's one word: poetry. You will know what I mean.
I thought about it and the sentence "You will know what I mean." doesn't seem to be correct, because you are giving a hint to something, but you're not trying to convey a meaning. So instead of saying that I think you should say "You will know what I am hinting at." Am I correct in saying this? What are some better alternatives?