( informal )
1.
( BrE ) becoming more and more successful :
The club has been on the up and up since the beginning of the season.
2.
( NAmE ) = on the level at level noun :
The offer seems to be on the up and up.
( informal )
1.
( BrE ) becoming more and more successful :
The club has been on the up and up since the beginning of the season.
2.
( NAmE ) = on the level at level noun :
The offer seems to be on the up and up.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005