Fake shoes that come from flea markets or other shady dealings. A play on the shoe brand "Phat Farms." There are actually shoes that flip the P logo upside down making appear to be a Q.
"Yo nice Quack Farms. What flea market they come from."

"I was going to buy a pair of shoes until I realized they were Quack Farms."
by Herbi January 27, 2009
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