A violent windstorm of limited extent, as the tornado, characterized by an inward spiral motion of the air with an upward current in the center; a vortex of air. It usually has a rapid progressive motion.
A person or body of objects or events sweeping violently onward.
Once he got that new scooter he turned into a whirlwind and damaged all the flowers.
Rapid and minimal: a whirlwind tour, a whirlwind romance.