Toot toot! Chug chug chug... Shark!
9 seconds sound clip from The New Adventures of Winnie the Pooh - A Very, Very Large Animal / Fish Out of Water (S1E19).
You can hear this line at 00:11:46.720 in the Blu-ray version of the TV Series.
Quote context
[...]
- That's right, Piglet. Even if you are smaller than some, you have the biggest heart around.
- Whoopee! He be back! Hooray for Piglet! Hoo hoo hoo hoo hoo hoo!
- Sure would be nice being a cloud... moving slow, nothing to worry about.
- Wish I could just float on by. Too bad donkeys don't float.
- Toot toot! Chug chug chug... Shark!
- Suffering salmon, I'm in for it now. It's the 50-year migration of the muttonhead trout!
- Must have built my tunnel on the wrong riverbed. Yaah! Smack-dab in their path.
- Hmm. By dinghy, this place is gonna be downright unlivable till this thing blows over.
[...]