单词Johnny-come-lately
na.: 〈美〉新来者；暴发户；生手网络: 强尼来晚了；新手；迟到的人
（尤指自负的）新人，新手:
a person who has only recently arrived in a place or started an activity, especially sb who is more confident than they should be
〔美国〕新来者,生手,暴发户
复数：johnny-come-latelies