burble

( v.)

   [from  Lewis  Carroll's  Jabberwocky] Like {flame}, but connotes that
   the  source  is  truly  clueless and ineffectual (mere flamers can be
   competent).  A  term of deep contempt. "There's some guy on the phone
   burbling  about  how  he  got a DISK FULL error and it's all our comm
   software's fault." This is mainstream slang in some parts of England.

[glossary]
[Reference(s) to this entry by made by: {flame on}{suit}]