The Collaborative International Dictionary
burbly
burbling \burbling\ burbly \burbly\adj.
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uttered with unrestrained enthusiasm; as, a novel told in burbly panting tones.
Syn: effusive, gushing.
bubbling; -- of sounds, especially of water.
Wiktionary
burbly
a. burbling
WordNet
Usage examples of "burbly".
The Korkel would talk to each other in a high-pitched, burbly sort of sound, and they always let the fish go.