urchin/ˈɜ:tʃɪn; `ətʃɪn/ n1(a) (esp dated 尤作旧) mischievous or naughty child, esp a boy 顽童, 淘气鬼（尤指男孩） You little urchin! 你这个小淘气!(b) (also `street-urchin) ragged or dirty child who is homeless and lives in poverty 街头流浪儿.2 = sea-urchin (sea).
牛津英汉双解词典