The vaginal region of Briza Coothbeartsun, it is a penis hungry sausage wallet and is so stretched out that when she has children, they will be able to just meander on out.
Paul: Hey Mo!!
Mo: Yeah?
Paul: Last night I got my head stuck in Briza Coothbeartsun's Big Floppy Mammoth Vag!!
n. a beat up pussy, almost resemblying roast beef. appears to have arms and legs, with a big nose.
Derived from a rare occurance, when a motorcycle was driving down the street with a vagina on it. 20 miles later, it was a wobbly floppy vagina, just beat up from the ride.
After running a train on Barbie, she had a wobbly floppy vagina, not to mention a need for the Double D.