on the down-low
In secret or nearly so, on a need-to-know basisIn secret or nearly so, on a need-to-know basis.
Meaning
3 senses(US, euphemistic, idiomatic, slang)In secret or nearly so, on a need-to-know basis.
I'll tell you, but keep it on the down-low.
(US, euphemistic, idiomatic, slang)Secretly sleeping with someone other than one's partner.
Of a man, publicly identifying as heterosexual but secretly having sex with men.