A dumb person who is just beyond fucking dumb.
"Look at that fumbo trying to eat soup with a fork"
Mixture of words that can not be explained based on how extraordinary something is
4👍 2👎
A person that is always fumbling and trembling.
You always trippin over yo big ass feet fumbo trembo
A fusion between the words fucking dumbo, originating from some idiot on the internet who mispelled dumbo