Condé Nast Traveler:

An airplane navigates through the sky along a route composed of beacons and waypoints. Waypoints are defined by geographic coordinates or their bearing and distance from a beacon, and by a name, which typically takes the form of a five-letter capitalized word—EVUKI, JETSA, SABER. The idea is that they will be pronounceable and distinct to controllers and pilots regardless of their first language. The pilot’s map of the world, and the flight computers’ too, is atomized into these waypoints. They are the smallest nuggets of aerial geography, and in some sense the only such unit that matters once you leave the runway. They are the sky’s audible currency of place.

As someone who relies on GPS to even leave the house, I’m familiar with waypoints but I had no idea the names of the ones used in the sky were so whimsical.