Hoover UK /ˈhuːvə(ɹ)/US /ˈhuvɚ/noun 2forms 1phrases 2 noun2 •A vacuum cleaner of the Hoover brand. •A member of the Hoovers. formsHoovers Phrases with Hoover Hoover flagAn empty (penniless) pocket, turned inside out, showing that someone has no money (especially during the Great Depression.) hoover upTo suck (something) into a vacuum cleaner, irrespective of brand.