salamander noise

A soft, quiet noise uttered by a person (usually by a girl) to display tiredness, sadness, disappointment, or anxiety. The best way to describe it is "mehh." It can also by used in question form to show subtle or mild interest. (mehh?)

Shelby: "It's getting late, i think we have to go home now."
Marissa: "Mehh." (salamander noise)