If you heard it used, it's possible it was meant to be one of these:
* Wuffling - Could be a playful attempt to describe a dog's sound, similar to "woofling."
* Wuffling - It's possible the speaker was trying to say something else entirely, and "wuffling" was a mispronunciation.
To get a better understanding, you'd need more context. For example:
* Who said it?
* What was the situation?
* What else was being said around the time?
Please provide more details, and I can help you understand the meaning!