Humph
/həmf/
Definition 1 of 2
Pro Tip 1/3Express Discontent
Used when someone is not happy with a situation, but not extremely angry. 
He forgot your birthday? Humph, that's thoughtless.
Pro Tip 2/3Mild Annoyance
Shows a slight irritation rather than deep anger. 
They're out of chocolate ice cream? Humph, I'll settle for vanilla.
Pro Tip 3/3Sarcastic Doubt
Can express skepticism or doubt about something said or presented. 
You'll clean your room without being asked? Humph, we'll see.