Jesus, Crustpants sound like a modern art masterpiece made by coating the pants in a thick enough layer of semen that if you were to wear them, they'd make loud noises when you move around in them as the layer cracks and breaks apart, leaving behind a slime trail with post-slime consistency..
..and I feel like the type of person who wears period pants has a much raunchier sub-type that wrings it all out or pours boiling water through them into a mug and drinks the stuff.