adverb
( BrE , informal ) very quickly
► ˌdouble-ˈquick adjective [ only before noun ]:
The TV was repaired in double-quick time .
adverb
( BrE , informal ) very quickly
► ˌdouble-ˈquick adjective [ only before noun ]:
The TV was repaired in double-quick time .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005