pack a snap
When a guy tries to pick up a girl by sticking two fingers in her snatch and a thumb in her butt, then snaps his fingers like he just won a bet.
He tried to pack a snap on me and I just laughed in his face.
My cousin did a snap pack on a girl at the club and she just walked away.
He did a snap pack on my sister and she told him to go back to his mom.