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FDK is an acronym for 'fucking difficult kunt'. Its origins derived from frustration, is used to depict one who is of an annoying and wearisome nature. Whilst FDK has a derogitive connotation and referenced in a slightly angered mannar, its intentional use is not to denigrate. The appropriate context to apply FDK, is when the subject (i.e. the FDK) has no reason to be an FDK, but chooses to be an FDK, to spite his friends. Also to note, FDK should only be used to describe males. The appropriate term for a female of a difficult nature is FFH. (click for a definition)
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