Deglazing is not as difficult as it sounds and no, it doesn’t involve hardwood floors. Deglazing means adding a liquid to a pan and using a wooden spoon or a plastic or silicone spatula to scrape up any browned bits of food stuck to the bottom.
As you’re cooking, especially if you’re sautéing, it’s inevitable that tiny pieces of food will stick to the bottom of the pan. The technical term for those bits is fond. Adding liquid to the pan loosens the fond so it’s easy to gently scrape it up.
Deglazing has two purposes. First, you want to remove the fond from the bottom of the pan before it burns and ruins the flavor of your dish. Second, by loosening the fond you’re incorporating those tasty bits into your dish, adding more flavor. You can deglaze with any liquid, but stock and wine are the most popular choices.