pid-pad [Echoic: cf. pad n.5; the two different vowels suggesting alternation, as in zigzag. Cf. pit-pat.] Imitation of the dull sound of footsteps. 1900‘Headon Hill’ Plunder Ship iii. 31, I..heard the pid-pad of bare feet.Ibid. xxiii. 214 There was..a pid-pad of sandals on the deck.