pfft
exclamation (probably meaning #1 or #3)?
1. used to represent a brief sound such as that made by the passage of a bullet or that of a small, muffled explosion.
"Pfft! Pfft! Pfft! Bullets ricocheted around the room"
2. used to convey the suddenness of a malfunction, disappearance, ending, etc.
"then pffft, that was the last we heard of them"
3. used to express a contemptuous or dismissive attitude.
"pfft, I don't know what all the fuss is about"
(from Google dictionary - presumably similar meaning in Canadianese?)
