Boot1  —n. 1 outer foot-covering reaching above the ankle. 2 luggage compartment of a car. 3 colloq. A firm kick. B (prec. By the) dismissal (got the boot). —v. 1 kick. 2 (often foll. By out) eject forcefully. 3 (usu. Foll. By up) make (a computer) ready.  put the boot in 1 kick brutally. 2 harm a person. [old norse]