A roaring success - Idioms by The Free Dictionary
a roaring success
be a roaring success
To be extremely or triumphantly successful. For having such a limited budget, their play turned out to be a roaring success. My business was a roaring success in the 1980s and '90s, but the advent of the Internet rendered my services obsolete.
a ˌroaring sucˈcess (informal) a very great success: The band was such a roaring success that they have been asked to stay for an extra week. ♢ His movies haven’t exactly been a roaring success, have they?