Old saggy vadge lips or abnormally huge labia majoras; mythical cunt lips on women of loose morals. Piss Lips are what most busted old whores end up with in the putird old age of 60 and up...
Your mothers piss flaps are a dark black on the outer edges, blending into a dark brown going in and finally a rashy-pink at her sad dry entrance.
She needs to stop pissing in the river, her piss flaps will catch parsitic cheese!
I tell you, she was so up for a porking her happy flaps were dripping with fanny batter, opened up like a wizard's sleeve revealing a gash as smooth and slick as an inside-out dolphin!