The sound one makes in response to something peculiar that has just occurred or has just been said. Most often used when irritated. Most often a natural response/reaction.
1) I thought I had a $5 bill in my wallet but it's not here .... hmpf.
A bath consisting of a variety of slats, oils, soaps or any other added ingredients such as fruits, milks, herbs or any other spices for health or beautifying benifits.
She brought home alot of stuff and took it to the bathroom. She must be taking a witch bath.