What does anstey massive mean?

anstey massive meaning in Urban Dictionary

a gang situated in Anstey made mostly of young adults. understood locally for battling with other chavs from beaumont leys. they often spray paint LE7, the neighborhood postcode over LE4 the postcode of beaumont leys. they always strike innocent people with metal taverns, bottles, bricks. fists and essentially any hefty dull item.