[Yo-Yo]

Cars driving in circles on roundabouts causing tornadoes is a corollary to the Butterfly Effect.

[Scarpetta]

As kids we’d walk the perimeter of the swimming pool over and over to cause a whirlpool effect. I can’t tell you how many flying birds were caught in our childish vortex.

[Disambiguator]

Cars driving in circles on roundabouts causing tornadoes is a corollary to the Butterfly Effect.

Or, as a tongue twister, a corollary to the Coriolis Effect.