WordNet sense 1 (the swift release of a store of affective force):

bang, charge, flush, kick, thrill, rush

WordNet sense 2 (an instrument of torture that is used to heat or crush the foot and leg):

iron boot, iron heel, the boot

WordNet sense 3 (the act of delivering a blow with the foot):

kicking

WordNet sense 4 (cause to load (an operating system) and start the initial processes):

reboot, bring up