hairbrush noun 1verb 1forms 3 noun1 •A brush used in hair care for brushing, tidying, and detangling hair verb1 •To spank with a hairbrush.Do you know what it’s like, Brannan, to be flogged and hairbrushed, kicked and cursed every day of your school life? I’m treated worse than a dog and nobody gives a damn—least of all the masters. — 2014 formshairbrushed · hairbrushing · hairbrushes