yob
noun [ C ] UK informal uk/jɒb/ us/jɑːb/ (also yobbo, uk/jɒb.əʊ/ us/ˈjɑː.boʊ/)
粗鲁的年轻人；小无赖，小流氓
a young man who behaves in a very rude, offensive, and sometimes violent way
a gang of loud-mouthed yobs 一帮口吐粗言的不良少年
Synonyms: hooliganruffian tough