A kickstand is the prop that holds a cycle upright when parked. Put the kickstand down, a broken kickstand, flick out the kickstand.
It is kicked into place with a foot, which is where the name comes from. Racing bicycles never have one, since the few hundred grams are considered too much to carry for the convenience.
1nounkickstandThe prop that holds a cycle upright when parked.
“He flicked down the kickstand and left his bike outside the shop.”
kickstand is a support.
Kick plus stand, from kicking the prop into place with a foot.
From kick + stand (the bar is typically kicked into place with the foot, and enables the vehicle to stand).
Etymology from Wiktionary, CC BY-SA