fluff

Short definition from Wiktionary

Noun

1. 1
   Anything light, soft or fuzzy, especially fur, hair, feathers.
2. 2
   Anything inconsequential or superficial.
3. 3
   A lapse or mistake, especially a mistake in an actor's lines.
4. 4
   A cloth diaper.
5. 5
   Marshmallow creme.
6. 6
   A passive partner in a lesbian relationship.
7. 7
   A fart.
8. 8
   Fan fiction, or part of a fan fiction, which is sweet and feel-good in tone, usually involving romance.
9. 9
   A form of roleplaying which is inconsequential and not related to the plot; often used in the context of (but not limited to) filling time.
10. 10
    Short change deliberately given by a railway clerk, to keep back money for himself.

Verb

1. 1
   To make something fluffy.
2. 2
   To become fluffy, puff up.
3. 3
   To move lightly like fluff.
4. 4
   To make a mistake in one's lines.
5. 5
   To do incorrectly, for example mishit, miskick, miscue etc.
6. 6
   To break wind, to fart.
7. 7
   To arouse (a male pornographic actor) before filming.
8. 8
   To bring to a state of excitement.
9. 9
   To deliberately shortchange (a railway customer) and keep the money for oneself.