Definition of "fluffy"

Someone sold you the fluffy idea that brains triumphs[sic] over strength when you were picked last for the sports team.

2008, R.Safley, Reagan's Game

And she is represented reading with great concentration, and not some fluffy novel but the rather politically oriented and literary Le Figaro, its title prominent if upside down in the foreground.

2006, Linda Nochlin, Bathers, Bodies, Beauty: The Visceral Eye, page 271

There was, I think, always a fluffy element to the neo-Pagan movement, but since the Internet explosion of the mid-to-late 1990s, it's got much, much worse. Most of it can be blamed on commercial drivers, as the publishers who produced neo-Pagan material (and the authors who work for them) realised that there was a vast market for teen-witch kits, bogus grimoires, etc, and set out to exploit it […]

2006, Pyromancer, “Re: The nature of the pagan community”, in uk.religion.pagan (Usenet)

Children can pamper the fluffies in the pets' corner […]

2014, William Gray, Cornwall with Kids, page 119

The world is overrun with fluffies. There was, I think, always a fluffy element to the neo-Pagan movement, but since the Internet explosion of the mid-to-late 1990s, it's got much, much worse. Most of it can be blamed on commercial drivers, as the publishers who produced neo-Pagan material (and the authors who work for them) realised that there was a vast market for teen-witch kits, bogus grimoires, etc, and set out to exploit it […]

2006, Pyromancer, “Re: The nature of the pagan community”, in uk.religion.pagan (Usenet)