cur
/kɜː(r)/noun
1- an aggressive dog or one that is in poor condition, especially a mongrel劣等狗; 恶狗; 杂种狗。
1.1
- informal a contemptible man〈非正式〉可鄙的人, 卑鄙小人。
词源
Middle English （in the general sense 'dog'）： probably originally in cur-dog, perhaps from Old Norse kurr 'grumbling'.