on the downlow

املاء درست اش on the down - low هست
یعنی در خفا یا مخفیانه
done secretly and not discussed, so that only a small number of people know about it:
Two colleagues were carrying on a relationship on the down - low.
Let's keep it on the down - low, okay?

محرمانه They have been trying to keep their split on the downlow