on the quiet

on the quiet

Confidentially; secretly; without anyone else knowing. Please keep this information on the quiet until we are ready to make a public announcement. It turns out he's been writing a romance novel on the quiet.
See also: on, quiet
Farlex Dictionary of Idioms.

on the ˈquiet

(also on the q.t. old-fashioned) (informal) without telling anyone; secretly: Well, just on the quiet, she’s actually leaving her job next month. Don’t tell anyone, will you? Just remember that whatever I tell you is on the q.t.
Q.t. is an abbreviation of ‘quiet’.
See also: on, quiet
Farlex Partner Idioms Dictionary
See also:
  • on the Q.T.
  • on the QT
  • fishing expedition
  • a fishing expedition
  • expedition
  • Finn
  • a Mickey Finn
  • mickey
  • Mickey Finn
  • under the rose