The term used to describe the hideous, vaginal bulge often spotted in obese and older women. A McGregor is particularly noticeable in
tight trousers; "
dustbin bag full of yoghurt" is a good metaphor for this phenomenon.
The McGregor often conceals a
pork pie.
"I would have
shagged her, but I was worried that her
wobbling McGregor might crush my cock completely."
"If you continue eating at such a rate, you'll soon find a monster McGregor
stretching the seems of your underwear."