Well, I'm stumped. I believe it's actually ムシャ ムシャ. The list I usually use for such things (http://oop-ack.com/manga/soundfx.html) was no good, but googling worked.
Yeah, you're right, that is ムシャ, I wasn't looking closely enough. Thanks!
We put a cat and a fish inside a box. After doing so...The cat inside may have eaten the fish, or may not have eaten the fish...*crunch* *crunch*meow~This is the "Schrödinger's Cat" theory.such a bother...*chew* *chew*