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."