n. (sometimes adjective)
Origionated in the early 21st century, as an insult/proclimation referring in terms to an electrical item that is used to pleasure the female gender.
Usually used in refference to people's mums or other members of family.
You get thrills out of a mumbrush don't you?
Do you need any help to give up the mumbrush?
Your mum uses a mumbrush/You use your mum's mumbrush
