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Used only in extreme situations generally female to female to describe a woman who will do anything to get her way.
I can't believe Marsha stole Jan's boyfriend, she's such a viper cunt.
by Pierre Toastie October 16, 2006
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An aggressive and seemingly vindictive bitch who delights in ruining lives for those around her for no reason.
"Belinda is being a total viper cunt to her sister."

"Someone is viper cunting all over this party, and we all know who."
by Schmucksy March 28, 2016
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