Pronunciation: (up-end'),[key] —v.t. 1. to set on end, as a barrel or ship.
2. to affect drastically or radically, as tastes, opinions, reputations, or systems.
3. to defeat in competition, as in boxing or business.
—v.i. 1. to become upended.
2. to place the body back-end up, as a dabbling duck.