Gyro-swing
From Memory Alpha, the free Star Trek reference.
A gyro-swing is a children's recreational device.
In grammar school, B'Elanna Torres disengaged the centrifugal governor on the gyro-swing while Daniel Byrd, a boy who had teased her, was on it. The swing then spun him so fast he "almost flew apart". (VOY: "Juggernaut")
