[Echoic: cf. KNICK-A-KNOCK.] An echoic word imitating an alternation of knocking sounds; hence adverbially: striking from side to side with alteration of sound.
1812. H. & J. Smith, Rej. Addr., Rebuilding. His head as he tumbled went knickety-knock Like a pebble in Carisbrook well.
1825. Chr. Wordsworth, in Life (1888), 28. You know that the pebbles cry nickety-nock when they arrive at the bottom.
