Why do we say someone whose career on the ascent is enjoying a meteoric rise? Don’t meteors plummet? For that matter, a caller asks, why do we call “heads up!” when a ball is coming towards us? Shouldn’t it be “heads down”? The hosts explain that “meteoric” in “meteoric rise” refers to the speedy, brightly streaking nature of a meteor. As for “heads up,” well, no language is perfect. This is part of a complete episode.