YOB

名词 yob:

1. a cruel and brutal fellow
   同义词：bully, tough, hooligan, ruffian, roughneck, rowdy, yobo, yobbo

yob

n.Chiefly British （名词）【多用于英国】
A rowdy, destructive youth; a hooligan or ruffian.
粗鲁的年轻人，小流氓：粗暴的、搞破坏的年轻人；流氓或无赖

来源：
Alteration of boy [spelled backward]
boy的变化 [反问拼写]