Meanings of true fly in English

We are your true fly-by-nights!

Swift and true flew the fatal shaft and buried itself to the feather in the curved back of the long yellow-haired peasant.

Like the true flies that they are, frank body snatchers, they wait, before touching a morsel, for death to do its work.

Both versions of the AirGeep were true flying cars, not hovercraft, as they did not rely on so-called positive ground-effect forces to keep them aloft.