fluff

Anything light, soft or fuzzy, especially fur, hair, feathers.

[W]hen I walk in my fields I can see, down Berwick way, the little fluffs of white smoke which tell me of this strange new hundred-legged beast, with coals for food and a thousand men in its belly, for ever crawling over the border.

Anything inconsequential or superficial.

That article was basically a bunch of fluff. It didn't say anything substantive.

A lapse or mistake, especially a mistake in an actor's lines.

A cloth diaper.

Marshmallow creme.

That New England-style salami and fluff sandwich sure hit the spot!

To make something fluffy.

The cat fluffed its tail.

To become fluffy, puff up.

To move lightly like fluff.

She gave the music-stool a twirl or two and fluffed down on to it like a whirl of soap-suds in a hand-basin.

To make a mistake in one's lines.

To do incorrectly, for example mishit, miskick, miscue etc.

Either side of Rooney's fluffed chance, it was a tale of Ukrainian domination as they attacked England down both flanks and showed the greater fluidity of the teams.