burble
verb- [intransitive, transitive] burble (on) (about something) | + speech (disapproving)
to speak in a confused or silly way that is difficult to hear or understand 语无伦次地讲；说蠢话 - [intransitive]
to make the gentle sound of a stream flowing over stones 汩汩作响
Word OriginMiddle English (in the sense ‘to bubble’): imitative. Current senses date from the late 19th cent.