fuzzball

noun6

1. •
   A ball of fuzzy material.

   • I sit in my bedroom picking the pilly fuzzballs off my lambswool sweaters and the phone will ring. — 1988
2. •
   Synonym of pill (“ball of fibers formed on the surface of a textile fabric by rubbing”).
3. •
   (informal, humorous) Any soft, fuzzy creature.

   • Ferrets can be very entertaining little fuzzballs, but keeping a ferret as a pet is also a big responsibility. — 2009
4. •
   A puffball.
5. •
   A quantum description of a black hole in superstring theory.
6. •
   An informal American street game resembling baseball.