gang of young delinquents; hoodlums
Refers to a group of young, often violent, troublemakers; historically associated with post-war Japan but still used for modern youth gangs. The term carries a rough, street-level connotation.
See also: ぐれる
In the chaotic post-war period, gangs of young toughs wreaked havoc in the streets.
That neighborhood has become a hangout for hoodlums.
He dropped out of high school and joined a gang.
I often heard stories of people being attacked by gangs on dark streets.
Many gangs were formed during the chaotic postwar period.