I know of no other possibility.
I did a search and found this:
mumbles menino
Share on twitter Share on facebook Share on more
41 up, 8 down
Term coined by Boston radio talk show host Howie Carr for Thomas Menino, mayor of Boston since 1993. His tounge is way to big for his mouth leading to such phrases (and their meanings):
pottah pot- porta potty
wollin walli- rolling rally
ar chieve- achieve
bee yahn- barn
youse- you (plural)
well...you get the picture
Mumbles Menino is wicked retahted...but his botched quotes ah pissah!