ankle-biter是什么意思?有人知道么

ankle-biter就是小孩子的意思。
这里就是说我肯定能够比一个小孩子做得好

ankle biter: Someone of little account, who criticizes others who are much better than she is.
Like a little dog that barks and jumps around, trying to bite people's ankles.

Example: That guy who said you could never do the job is just an ankle biter.

你所提到的句子的意思应该是：我肯定我会比那个只会
挑毛病德人做得好。

ankle-biter,a catch-all term for small dogs who tend, as a group, to be tough, feisty litle beasts and are often touchy and quarrelsome.

貌似还有这个意思。
莫非是我会比一只凶猛的狗还做得好？

上下文呢？他是要做什么？

ANKLE BITER有两个意思: 第一个意思是在英国或澳洲的俚语中表示"孩童", 根据句子内容显然不符合; 第二个意思是在美军军队俚语中表示"找茬的人"或者说为了批判而批判的人.