the.com/cartwheel

means A sideways rotation of the body through a handstand, hands and feet touching down in sequence like spokes passing a hub.

from Named for its resemblance to a cart's wheel turning—body as spoke, limbs marking the rim's rotation. 'Cart' traces back through Old Norse 'kartr' to wagon-building roots, while 'wheel' comes from Old English 'hweol,' kin to an ancient root meaning 'to turn' that also gave us 'cycle.' The gymnastic sense of the compound word emerged as a natural visual metaphor once both pieces were in place—no record of who first called it that, just an image too apt not to stick.