ball of fluff

plural balls of fluff

1. Synonym of fluffball (“creature that resembles a ball of fluff”).

   Gingernut was small and ginger too, though of course he didn’t wear braces. That smallness and gingerness was probably, deep down, why Zoe chose him out of the dozens of little balls of fluff snuggled up together behind the glass at the pet shop.

   2012, David Walliams [pseudonym; David Edward Williams], Ratburger, London: HarperCollins Children’s Books, →ISBN

   Synonyms: fluffball

2. Used other than figuratively or idiomatically: see ball, of, fluff.