In our house if you "toot," you may claim it to be thunder. We don't have a dog to blame it on so we usually wonder aloud if there's a storm coming. Or speculate whether Dan Edwards warned of rain.
A few nights ago Abbie and I were laying in her bed and I thought I had heard thunder. (It had been raining.) I wondered aloud if it was thunder and Abbie said,
"Well, I didn't hear anybody toot."
That was the first one that came to mind - isn't that what you wanted, Sarah?