mac on
Trying to get some action from a girl, usually when you look like a sad hot dog in a soup bowl.
My cousin tried to mac on my aunt and got slapped like a bag of chips.
He texted her, 'Hey, wanna go out? I bring fries.' She said, 'No, I bring a bat.'
He tried to mac on the barista, and she asked him if he was a failed math problem.