it ain't that kinda night
Any sort of situation in which you do not wish to include someone or partake in something after someone brings it up.
Chad: So dudes and dudettes, we were thinking about hitting up some movies tonight. You down?
Amber: Oh my god yes! Can I bring my friend Emily? She has NOTHING to do tonight.
Chad: I dunno Amber. It ain't that kinda night.
Amber: Oh my god yes! Can I bring my friend Emily? She has NOTHING to do tonight.
Chad: I dunno Amber. It ain't that kinda night.