nope card

An individual's personal entitlement, however idealistic it may be, to negate another person's statement, thought, or action which the entitled individual disagrees with with or simply wants to refuse. It is leveraged in much the same way as the "nope" card in the card game Exploding Kittens, albeit figuratively.

"Jeffrey, I really care for you. But this isn't working. I want to break up with you."
"Nope."
"What?"
"Nope"
"I don't understand. What do you mean nope?"
"I'm playing my nope card. So you can't break up with me."
"Oh. Okay."
"Wanna go out for drinks tonight?"
"Sure, I guess."