keep (something) on the down low

To keep something in a state of secrecy or minimal public knowledge; to not share something with anyone else. Keep this on the down-low, but Janet is planning to break up with Kevin next week.

Common Names:

Name	Pronounced	Usage
Dinis	dee-NEES (Portuguese), jee-NEES (Brazilian Portuguese)	Portuguese
Merton	MUR-tən	English
Margot	mar-GO	French
Serafeim	-	Greek
PÁDraig	PAW-drig, PAW-rig	Irish
Murdag	-	Scottish