a Mcfarflan is an intense love/obsession for black people, in particular black men. This obsession is often triggered by alcohol, however extreme cases of Mcfarlfan can also occur when sober.
oh dear, I think she's came down with a bad case of Mcfarflan, she slept with 5 black men last night.

I heard she had an orgy with 3 black men last night, she's such a Mcfarflan
by Sexy Onee September 24, 2013
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