So what you meant to ask was "Hey Cez, is your asshole so loose from getting ****ed that all expelled gas just goes whoosh"?
No, fluffing is just what my aunt always called farting.
Everybody in my family laughed whenever she said it.
So no, that's not what I meant by it. lol. The fact that you asked if it was offensive makes it pretty clear you were not trying to be offensive, so no worries from me.
Don't read this spoiler unless you're brave, like the toaster, and can handle gay terminology: