1. To gather up dirt or debris with a vacuum cleaner. A noun or pronoun can be used between "vacuum" and "up." With two toddlers, it feels like I'm always vacuuming up crumbs all over the house. I tried to vacuum up most of the dirt, but some of it has gotten caked into the rug.
2. To collect, obtain, or steal a large number or amount of something very rapidly, especially in a secret or inconspicuous manner. A noun or pronoun can be used between "vacuum" and "up." The company has been vacuuming up properties all over town to build more apartment complexes. The malware runs on your computer in the background and vacuums up all your personal information.
3. To consume a large amount of food or drink very rapidly. A noun or pronoun can be used between "vacuum" and "up." The kids came in from the playground and vacuumed up their lunch. You're going to feel awful tomorrow if you keep vacuuming beer up like that.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
vacuum something up (from something)
to clean something up from something with a vacuum cleaner. Fred vacuumed the dirt up from the carpet. He vacuumed up the birdseed from the kitchen floor.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.