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1.
A minor form of any worse curse, similar to dang, flip, and frick.
"You didn't big up the bag of frozen puppies I asked for? Sfank you man!"
by MrMastodonFarm May 29, 2006
 
2.
A derogatory word, used to describe someone of both Asian and Caucasian decent
Someday, Eric (White) and Bekah (Yellow)will have a little sfank of their own.
by HolyDivah May 04, 2007