a Shitanaga Uba is a type of yokai-hag from Japanse folklore that resemble ugly old women with horrendously long tongue (up to 4ft in length).
They often pair with the demonic yokai known as Shunobon in order to ambush and prey on humans, who the hags will pin down and drain of all blood and meat via licking them repeatedly with their strange tongue, leaving only a shrivelled corpse behind.