The term FLUFF is used to describe a light, airy material, often used as a filling or insulation. The crossword solutions for this term include FLOSS (5 letters), FALTER (6 letters), BLOOPER (7 letters), FLOUNDER (8 letters), BUNGLE (6 letters), BOTCH (5 letters), DOWN (4 letters), BLUNDER (7 letters), BONER (5 letters), FUR (3 letters), FUZZ (4 letters), ERR (3 letters), PAP (3 letters), NAP (3 letters), LINT (4 letters), SLIP (4 letters), ERROR (5 letters), and FILLER (6 letters). These words are all related to making mistakes, being clumsy, or not doing something correctly. They can also be used to describe someone who is not very competent or skilled.