Overheard in court
Officer: "She mumbled 'give it.'"
Me: "She mumbled. So, her statement to you was unclear, right?"
Officer: "No, it was very clear. It was a clear mumble."
Merriam-Webster online dictionary definition of mumble:
intransitive verb : to utter words in a low confused indistinct manner...
transitive verb 1 : to utter with a low inarticulate voice...