JACKANAPES Meaning of JACKANAPES in English [jack.a.napes] n [ME Jack Napis, nickname for William de la Pole d. 1450 duke of Suffolk] (1526) 1: monkey, ape 2. a: an impudent or conceited fellow b: a saucy or mischievous child Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012