Jackanapes
/ˈdʒækəneɪps/noun
1
- dated an impertinent person〈旧〉自大而鲁莽的人。
2
- archaic a tame monkey〈古〉驯服的猴子。
词源
early 16th cent. （originally as Jack Napes）： perhaps from a playful name for a tame ape, the initial n- by elision of an ape （compare with NEWT）, and the final -s as in surnames such as Hobbes： hence applied to a person whose behaviour resembled that of an ape.