Meanwhile the author of the latest explanation went from house to house to burble the news in the company of his two witnesses.
With a burble of insane, twittering glee, he went into action.
I even test my burble on poor Sister every week before sending it in.
There was no wind, and except for the burble of the stream and the call of the birds all was still in the forest.
"make a bubbling sound," c.1300, imitative. Related: Burbled; burbling.