Ivanna: "Julie how are your men?"
Danielle: "oh shes been macking the biddies!"
Julie: "yeah i've been tapping them biddies, all day errry day BREH, BREH!"
Covert flirting between two people. Because they have to keep their true feelings for each other secret, for whatever reason (i.e. they work together, one is married, etc.).
"Those two can't seem to stand each other! They're always fighting over something!"
"Wrong, man. It's all a front they put up. They're actually macking on the sly."
A statement to acknowledge someone being flirtatious, a possible sexual situation; or complimentgood looks. Could also be used a joke to note a completely platonic situation being one where the parties had devious sexual thoughts.