Susurrus: the indistinct sound of people whispering. As in, “I was struggling to pick out any piece of the susurrus to distract myself from my creepy date’s attempts at conversation. You’re damn right I’m going to finish my breadstick, you cheapskate!”
So apparently susurrus is also called “walla” when it’s used for film. (In case you were wondering why there are so many vegetable names in the background.) Also, if this guy looks familiar, then you must have worked with me at the car dealership in the early 2000s. Or you read this last year. I mean...he was too good to be a one hit wonder.