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1.
A squirff is when a fart creates an air pocket between a male's scrotum and groin area. They tickle a little bit.
"Man, that squirff tickled my scrotum. Shoo wee, it smells like vinegar."
by Travis Dean November 09, 2007
 
2.
A squirff occurs when a male passes gas and the fart gets stuck between his scrotum and groin area. The pocket of air eventually finds it's way into the open air and transforms from a fart into a squirf. They smell similar to a fart but with a hint of vinager.
"Man, that squirff tickled when it squeezed between my scrotum. Pass me another beer would ya?"
by Travis Dean November 07, 2007