put, verb
transitive. Colloquial. In the phrase to put foot, to use the accelerator on a motor vehicle; so (figurative), to ‘get a move on’, to hurry. Cf. to tread tackie (see tackie sense 1 c).
1981 L. & P. Robertson-Hotz in Bloody Horse Jan.–Feb. 32Now we’d better put foot; we’ve only got a couple of hours before they discover we’ve escaped.
1991 M.J. Silva Informant, Grahamstown (now Makhanda, Eastern Cape)I’ve got to meet him at the video shop. Come on Dad, put foot.