burbling

Aquariums crowd the kitchen, burbling with the blue glow of water filters and underwater lights.

Millis and I could hear bullfrogs burbling in some distant pool.

But the source of that particular burbling moved through the dark wood beyond the clearing.

Lilly darted into the kitchen and stooped absorbed over the burbling coffee.

There was no wind, but the stream's burbling whispering chuckle had gained twice its daytime strength.

The coughing had a burbling sound to it, as if the old pope's lungs were full of fluid.

As for Brenton, it's a mere case of burbling genteel platitudes in a marvellous voice.