burble
\BUR-buh l\
verb
1. to speak in an excited manner; babble.
2. to make a bubbling sound; bubble.
Quotes
He didn't tell us much, but he burbled with a certain eccentric charm.
-- Gyles Brandreth, Breaking the Code: Westminster Diaries, 1999
Origin
Burble is thought to be onomatopoeic in origin, expessing the sound of bubbles or bubbling. It entered English in the early 1300s.
Dictionary.com
