An occurrence in which something or someone plunges
1851, Herman Melville, Moby Dick; or The Whale Chapter , Like one who after a night of drunken revelry hies to his bed, still reeling, but with conscience yet pricking him, as the plungings of the Roman race-horse but so much the more strike his steel tags into him; as one who in that miserable plight still turns and turns in giddy anguish, praying God for annihilation until the fit be passed; and at last amid the whirl of woe he feels, a deep stupor steals over him, as over the man who bleeds to death, for conscience is the wound, and there's naught to staunch it; so, after sore wrestlings in his berth, Jonah's prodigy of ponderous misery drags him drowning down to sleep ... .
1881, Mark Twain (Samuel Clemens), The Prince and The Pauper, Complete Chapter , Then followed a confusion of kicks, cuffs, tramplings and plungings, accompanied by a thunderous intermingling of volleyed curses, and finally a bitter apostrophe to the mule, which must have broken its spirit, for hostilities seemed to cease from that moment.
