dick du jour
A play on soup du jour ("soup of the day"). The latest in a long string of flings or short-term boyfriends for a woman or a gay man.
Girl 1: Who's the new guy with Zoe? I thought she was dating Zach?
Girl 2: Oh, that's Chase. He's the "dick du jour".
Girl 2: Oh, that's Chase. He's the "dick du jour".