What does the Northeastern mean by "a little mysterious"?

The word "a little mysterious" mentioned by the northeast people is ellipsis, the whole sentence is "a little mysterious", and the last word "Hu" is weakened. Guahu in the northern dialect means "unreliable, unreliable, unreliable", so the word "a little mysterious" or "a little mysterious" in the northeast means "(in my opinion) that is to say, I have no confidence and can't grasp it.