An almost silent, "whooshing" or "piffing" fart.
Try as he might, John's attempt to let only a piffer resulted in a full-blown, sphincter clapping fart.
by MikeyVeggo April 9, 2003
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This is when somebody sticks their finger up their butt and scratches it. Then they lick their finger.
Eww that girl is Definitely a Piffer did you see her just do that?
by Vinicent May 29, 2008
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A person who sits in a bathtub, farts, then bites at the bubbles.
Chris's breath smells like shit because he's a piffer.
by Anthony April 4, 2005
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When you slyly lick the tip of your thumb and gently "flick a woman's bean"
Mike and Alice were messing around on the couch. Mike decided to steal 3rd base and give her a little piffer.
by JamesBradshsw September 29, 2015
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ie. jodi slept with panties on for fear of getting spiders in her piffer.
by upnorth July 26, 2005
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