幼稚的小鬼英文

kid。这算是比较口语了。

little munchkins 形容小孩子、小淘气，很可爱的说法。

little buddy or little guy~ or implish

goblin

gremlin 英 [ˈgremlɪn] 美 [ˈɡrɛmlɪn]n.小鬼例句：The microphones went dead as if the technical gremlins had struck again.麦克风没有了声音，似乎小妖怪又把设备弄坏了。

一般来说是guy，这个比较口语化

little brat

Well you little man! 喂，你这小鬼！ That kid makes face at me. 那小鬼对我做出鬼脸。 “What is it, Pumpkin? “怎么了，小鬼？” Buzz off, you nasty little child! 滚开，你这个讨厌的小鬼！ A child, especially a spoiled or ill-mannered one. 小鬼，小家伙小孩，尤指被宠坏的或举止粗鲁的小孩