Chicxulub asteroid 

Something that solves many problems with a single action, i. e. killing many birds with one stone. Named for what was responsible for the extinction of dinosaurs; since birds are dinosaurs, that means that the asteroid (a stone) killed many birds.
(cx is pronounced "ksh")

Snow is my Chicxulub asteroid; it gets me away from all my problems and helps me to feel better.

Chicxulub asteroid by ThighFish December 25, 2024