pipsqueak

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++pip·squeak /ˈpɪpskwiːk/ noun [countable] old-fashioned  UNIMPORTANTsomeone that you think is not worth respecting or paying attention to, especially because they are small or young 无足轻重的人，小人物

Examples from the Corpus

pipsqueak• If a pipsqueak mob like the Green Party can do it, why can't the mighty Labour Party?• Fernandez is a pipsqueak compared to other drug dealers.• I was damned if some nineteen-year-old pipsqueak with zits and a clip-on tie was going to make me feel loathsome.

pip·squeak nounChineseSyllable  

is someone think Corpus paying respecting you that worth or not

pipsqueak
pip‧squeak /ˈpɪpskwiːk/ noun [countable] old-fashioned
someone that you think is not worth respecting or paying attention to, especially because they are small or young

pip·squeakBrE /ˈpɪpskwiːk/ 🔊NAmE /ˈpɪpskwiːk/ 🔊 noun (old-fashioned, informal) a person that you think is unimportant or does not deserve respect because they are small or young 无足轻重的人；小人物；小子