A loud noise that is made during an awkward silence.
murmur: define #2
When you can’t hear someone when they talk
Zack says, “You are an acute angle.” Armen says, “Zack I can’t hear you, you are mur muring.”
murmur: define #3
When someone is being annoying and you cant understand what they are saying.
Zack say, “Shut up Armen” Armen says, “Why are you mur muring”