From Longman Dictionary of Contemporary Englishburblebur‧ble /ˈbɜːbəl $ ˈbɜːr-/ verb 1 [intransitive, transitive]SPEAK A LANGUAGE to talk about something in a confused way that is difficult to understandburble on/away I had to listen for an hour while she burbled away.2 [intransitive]SOUND to make a sound like a stream flowing over stones —burble noun [singular]→ See Verb table
Examples from the Corpus
burble• Under the black vinyl the waters burbled and hiccuped.• The computer would be burbling away and the lights would be fluttering around the console.• I stroke her hair and burble fine words, while she sobs out her questions and accusations.• The constant stream of praise burbling in the background of the class swelled into shouts of rapture.• Outside, a wood dove burbled on my sill.• A fresh-faced young girl burbled out her news.• There was no sound except for a pigeon burbling to itself in the road, pecking at horse-dung.• You should have heard a dial tone, a ringing sound, then burbling tones.burble on/away• The computer would be burbling away and the lights would be fluttering around the console.• Outside, a wood dove burbled on my sill.Origin burble (1300-1400) From the sound 