A whiffy is a line of cocaine but is far more often used in the plura - whiffies.
No more whiffies for Raynor, he's too fucked up already.
by aquinas January 23, 2005
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"whiffy" for meth is the equivalent of "dank" to weed as frequently used by potheads to describe things.
"Dude, Carrie's titties are looking really whiffy tonight. You ever snort rocks off them thangs?"

or

That new MARTA Breeze pass is mega whiffy.
by Tina1991 November 29, 2006
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Someone with a smelly foo/ mooey/ vagina or just used as an insult!
na mate... that girls nasty, she's gotta whiffy biff!!

"GET YOUR BIFF OUT"

dont you just love the smell of biff in the morning ?!

Mate i can smell her whiffy biff from ere

oi love u have one whiffybiff

u know its been a good session when she ends up with a whiffybiff on the journey home

Shut ur legs u biff is whiffy

mate i smashed that lauren last nite and she had a right whiffybiff!!!!

mate have a whif of that biff
by imperialmike October 01, 2009
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A foul stenching pussy, then needs not only washing but bleeching
Gees is that mine or your whiffy pussy
by mitch00uk March 22, 2015
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V. panty sniffing your own panties for sexual stimulation
n. (whiffy sniffer) one who sniffs their own genitals for kicks
n. alt.(whiffy sniffer) crazy, psychotic
v.Later that evening she was caught with her panties over her head whiffy sniffing the hell out of them.
adj. That whiffy sniffing ho was bad news from the get go.
by Steve, the stepfather July 24, 2006
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