fluff - noun

any light downy material

something of little value or significance

a blunder (especially an actor's forgetting the lines)

fluff - verb

• make a mess of, destroy or ruin
• erect or fluff up
• ruffle (one's hair) by combing the ends towards the scalp, for a full effect

fluff - thesaurus

bagatelle   frippery   frivolity   ruffle   tease