wheel clamp
noun [ C ] UK uk/ˈwiːl ˌklæmp/ us/ˈwiːl ˌklæmp/ (US boot, Denver boot)
(惩罚违章停车的)车轮固定夹
a metal device attached to the wheel of an illegally parked car that will only be removed when the owner pays an amount of money
I hope we're not going to find a wheel clamp on my car when we get back. 希望我们回来时不会在车上发现一个车轮固定夹。