1. An alluring but old-aged Yummy-Mummy, so called because she typically exposes raw gum during fellatio.
2. Offensive name for a third generation MILF whose daughter AND grand-daughter one has boned
Also "Gummy Mummy"
- Dude, I got tanked and pulled a Yummy Gummy down the bingo.
- Don't you mean Yummy Mummy?
- No she was a total Gummy Mummy. I dropped her off at the old people's home around 9pm. She left her dentures in the car.