Being smart is a kind of ridicule, which means that the other person is not smart. It can also be described that people are smart, but the more common deep meaning is to describe people who are not very smart or even a little stupid at some time. Its similar words are idiot, fool and so on, so whether Xi An is smart or not is whether Xi An is stupid or not.
The clever terrier comes from the richest man in Xihong City. Great cleverness is a role in the movie "The Richest Man in Xihong City". This "stupid" smart guy is not too smart, but he did a lot of smart things by mistake in the movie. Great cleverness looks clumsy, but it is known as the IQ of Xihong City. Unexpectedly, the unfinished building he invested in accidentally turned into a school district, which really brought huge profits. Of course, it also created a crisis for Wang Duoyu's money-burning war, and also contributed a lot of jokes to the film.