pronoun. An underground all male sex club located in San Francisco, California; at which, men place their heads into a toilet and allow other men to anonymously penetrate them anally while an audience watches. (Club policy requires all particapants to use latex condoms) A european man known as "Mr. Experience" current holds the club record with 378 penetrations in a single night; he is said to have a DrkXfactr of 378.
Swinging gay men in the San Fran area will commonly ask each other, "what's your DrkXfactr?", or encourage each other to "go Drk(perfom publicly)."
by Drk32factr January 18, 2007
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