down low(redirected from Downlow)
Also found in: Dictionary, Idioms, Wikipedia.
down low, downlow (down′lō″) [Slang, short for on the down low, to keep a secret, in secret],
1. Keeping an act, a plan, or some information secret.
2. Leading a double life, esp. with respect to sexual preferences. It usually refers to men who represent themselves publicly as strictly heterosexual but secretly have sex with men.