the.com/fluff

means A trivial, lightweight bit of writing, talk, or material — padding with no real substance.

from Fluff began as a dialect word for the soft, light bits that come off wool or cotton during processing — the downy waste that floats away rather than staying woven in. It's probably related to 'flue,' an old word for the same fuzzy lint. By the 1800s people had stretched it from the literal tufts to anything equally insubstantial — stories, speeches, résumés — things that look like they have body but are mostly air, just like the stuff that drifts off a blanket.