a cross between mumbling and rambling. Someone who goes on and on and on, in a low mumbling voice.
Stop mambling! I can't understand a word you are saying.
by Robean January 03, 2009
Can you define these popular missing words?
The action of mumbling while rambling.
My friend wouldn't stop mambling about her history teacher and how he gave her a bad grade.
by itskatomall July 16, 2016