Useless¹⁾ old pieces of paper occasionally found in dwellings or the Jungle. You can pick them up if you have a case, but really, what's the point?

Can also be used as a verb. Imagine taking two hairbrushes, resting on one a clump of sheep's wool, then furiously brushing them together until the individual fibres of the wool itself are aligned.

Also a form of torture. But let's not go into the details, eh?