Hoover up Definition 1 of 4Pro Tip 1/3Speedy Eating Indicates eating very fast, often with a sense of urgency or greed. After the game, we hoovered up the pizza. Pro Tip 2/3Impressive Appetite Implies admiration or surprise at someone's ability to eat quickly or in large amounts. Wow, you really hoovered up those burgers! Pro Tip 3/3Casual Setting Typically used in informal situations among friends or family. Let's hoover up some snacks before the movie starts.