Any of
four folds of tissue of the female external genitalia that are floppier, flabbier, flappier, or fatter than normal.
i.e. A
floppy, flabby, flappy, or fat
labia.
Alice's flabia was so long that she had to
walk bow-legged when not wearing
panties in order to avoid pinching them with her thighs.
I motorboated her flabia.