What is the meaning of Fluff?

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

Anything inconsequential or superficial.

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

Marshmallow creme.

A passive partner in a lesbian relationship.

A fart. (Can we add an example for this sense?)

Fan fiction, or part of a fan fiction, which is sweet and feel-good in tone, usually involving romance.

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.

Short change deliberately given by a railway clerk, to keep back money for himself.

To make something fluffy.

To become fluffy, puff up.

To move lightly like fluff.

To make a mistake in one's lines.

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

To break wind, to fart.

To arouse (a male pornographic actor) before filming.

To deliberately shortchange (a railway customer) and keep the money for oneself.

fluffy (and absorbent) stuff in a baby's diaper

Source: wiktionary.org