Pfft American interjection exclamation
Used to denote a sound that indicates the sudden disappearance or ending of something.
All of a sudden - pfft. He's gone without telling us.
Well, pfft, they disappeared!
Used to reject or disagree in a sarcastic way with what someone has said or done.
Pfft, what a ridiculous idea!
"He said he would win the first prize" - "Pfft, he might be daydreaming".
It is first recorded in 1920–25
To do domething based on your emotions rather than for rational reasons
I can't believe that Tom beat his classmate. He's always the one who let his heart rule his head.