halley's comet, n.All

Mark ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Twain predicted he'd go out with Halley's Comet, and died the day after it returned.