the world > movement > rate of motion > swiftness > swift movement in specific manner > move swiftly in specific manner [verb (intransitive)] > irregularly or unsteadily (2)
reelc1586
intransitive. To move or travel rapidly and unsteadily; to hurtle, esp. with a rolling or whirling movement. Now rare.
shimmy1969
intransitive. figurative and transferred. To shake, quiver, vibrate, to progress hastily or irregularly.