whippersnapper

名词 whippersnapper:

1. someone who is unimportant but cheeky and presumptuous
   同义词：jackanapes, lightweight

whip.per.snap.per

n.（名词）
A person regarded as insignificant and pretentious.
无足轻重即又妄自尊大的人

来源：
Alteration influenced by whip
受 whip的影响
of dialectal snippersnapper
方言 snippersnapper的变化