What was kennys encounter with the wool pooh?

There seems to be a misunderstanding. There is no known encounter between Kenny (from the show South Park) and Winnie the Pooh (also known as Pooh Bear).

Kenny's character in South Park is known for being a silent, mostly obscured character who often dies in various comedic ways. Winnie the Pooh is a beloved fictional bear created by A.A. Milne.

It's possible you're thinking of a specific fan-made creation or internet meme that features both characters, but it's not a canonical encounter within their respective universes.

If you could provide more context about what you're thinking of, I might be able to help further.