When a Guy Says Pfft?

PFFT is "An Expression Of Dismissal." The interjection PFFT (pronounced "pufft") is used to dismiss something that someone has said or typed. When used as a direct response to a statement by another person, PFFT can often be considered quite rude.

Is Pfft a scoff?

What's the word for when someone makes a "pfft" sound to signify dissaproval or annoyance? It's not a sigh, it's not a scoff....

What do you call a pfft?

That sound is called a raspberry (sometimes also referred to as a "Bronx Cheer"). The act of making it is referred to a blowing a raspberry.