Definition fluff in American English

fluff verb

[transitive] verb

/flʌf/

to shake something so that more air goes into it and it becomes larger and softer

Example

Fluff the pillows after you use them.

Example

When he's frightened, the cat fluffs up his tail.

Synonyms and related words

swing bounce rock

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to do something badly

Example

She started to fluff tasks that should have been childishly simple.

Example

Try not to fluff your lines!

Synonyms and related words

mess up blunder slip up

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