on the quiet

(informal)

secretly His marriage broke up when his wife found out he'd been seeing someone else on the quiet.

Name	Pronounced	Usage
Yehudi	-	Hebrew, Biblical Hebrew
Ferguson	['fɜ:gəsn]
Padmini	-	Indian, Kannada, Tamil, Telugu
Siward	-	Ancient Germanic
Ralph	[reif]
Aike	-	Frisian