> He's like a good (lit. fast) top that steadies itself soon after touching the ground.
i.e. he understands or learns quickly. In Palau the top is spun in the air and dropped to the ground where it usually wobbles for a spell before it becomes "planted" or stable. The better the top, the less the wobble. A statement that is right to the point, or a decisive and good decision, is like a good top. The idiom may be applied to a person who is quick to get the point or learn a new skill.