A bastardisation of the phrase "mothering the brushes" meaning to gain sexual pleasures from an ordinary household object the same way a dildo works. There is now a small company in south-east England manufacturing mumbrushes for sale.
Also: mumming the brush. To use a mumbrush.
Also: mumming the brush. To use a mumbrush.
"Did you see Coling go with that mumbrush!?"
"I mummed the brush all fucking day and nothing fucking happened, I'm complaining to my lawyer!"
"I mummed the brush all fucking day and nothing fucking happened, I'm complaining to my lawyer!"
by Comrade Stankey June 30, 2004