Alternative form of kill one's darlings

A large geographical area in the interior of southeastern Australia, spanning most of the states of New South Wales, Victoria, and the Australian Capital Territory, and parts of the states of Queensland (lower third) and South Australia (southeastern corner).

(idiomatic) To destroy things or characters, particularly in art, of which one is fond, and thereby conflicted about.

Notomys mordax, an extinct murid known from a single skull found at Darling Downs, Queensland, Australia.