Meaning of the word "fluff up" in English

What does "fluff up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

fluff up

US /flʌf ʌp/
UK /flʌf ʌp/

Phrasal Verb

to make something soft and full by shaking or hitting it

Example:
She always likes to fluff up the pillows before going to bed.
Can you help me fluff up the cushions on the sofa?