Definitions:
a sturdy item of footwear covering the foot and ankle, and sometimes also the lower leg.

a hard kick

an enclosed space at the back of a car for carrying luggage or other goods.

the process of starting a computer and putting it into a state of readiness for operation

kick (something) hard in a specified direction

start (a computer) and put it into a state of readiness for operation

place a wheel clamp on (an illegally parked car)