fluff out

fluff out

To cause something to become puffier in appearance. A noun or pronoun can be used between "fluff" and "out." In the 80s, girls used to fluff out their bangs and make their hair as voluminous as possible.
See also: fluff, out
Farlex Dictionary of Idioms.

fluff something out

[for a bird] to move its feathers outward. The parrot said good night, fluffed its feathers out, and went to sleep. The bird fluffed out its feathers.
See also: fluff, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • empty in(to) (something)
  • empty into
  • enlist in
  • enlist in (something)
  • (Is) this taken?
  • count in
  • batten
  • batten down
  • copy out
  • copy out (by hand)
References in classic literature
To fluff out her curls, put on fashionable dresses, and sing romantic songs to fascinate her husband would have seemed as strange as to adorn herself to attract herself.
War and Peace
The Local Interstellar Cloud isn't the only cloud of fluff out there, and now Opher theorizes that other interstellar cloud formations may be highly magnetized too.
Magnetic field allows interstellar space to be fluffy