Gang Busters was a fast-paced cops ‘n’ robbers radio show that featured the sounds of glass breaking, whistles blowing, guns blasting, and sirens wailing. Within a few years of its 1935 debut, “like gangbusters” had become part of the vernacular. The catchphrase “come on like gangbusters” long outlived the 1957 demise of the show that spawned it, as did “that was gangbusters.”