après nous, le déluge

Used to express selfish disregard for problems that may occur in the future, especially after one's death or reign of control. This French phrase literally means, "After us, the flood." Attributed to both King Louis XV and his mistress Madame de Pompadour, the phrase likely refers to (and foreshadows) the difficulties that would befall France after years of the aristocracy's lavish living. A: "Do you really have no regard for the trouble you're causing?" B: "You're overreacting. Besides, you and I will be long gone before anything bad might come of this. Après nous, le déluge!" How can they just disregard the problems their actions will cause for future generations? Is their whole mindset "après moi, le déluge"? Those professors have totally destroyed the department with their wild spending. "Après nous, le déluge" definitely applies to them.