1. A secret to be kept quiet, from others especially friends or family.
2. The act of homosexual relations between black men. Often unprotected, and/or anonymous sex. Most men do not speak of the sex as they are getting together for a night of poker or other "manly" sport away from their wives or girlfriends.
u see that guy over there...well hes one of those guys in that Down Low thing, they call it poker night