gangbuster
Concise Oxford English Dictionary © 2008 Oxford University Press:
gangbuster/ˈɡaŋbʌstə/
▶noun N. Amer. informal
- 1 a police officer engaged in breaking up criminal gangs.
- 2 [as modifier] very successful: the restaurant did gangbuster business.
– phrases
go (or like) gangbusters with great vigour or success.
go (or like) gangbusters with great vigour or success.
'gangbuster' also found in these Oxford entries:

