1 definition by Merriam Webster Inc.

Fu-ta-nari:
Formally a verb, but popularly an adjective.
Formal: verb: Root syllables mean: 'fool the sorry'.
Common: adjective: 'dual form', with implied meaning of: having penis and vagina.

Futanari originated as both an experiment and joke amongst cartoonists. Exhausted and bored, a few endeavoring cartoonists decided to set the standard for Trolling. These fellows created and marketed the genre "futanari".

Influenced by the likes of George Orwell's '1984' and Adolf Hitler's 'Mein Kampf', the artists harnessed the power of "DoubleThink" and the "The Big Lie" observation. They generated and distributed a heinous and hideous form of art using the catalysing advertising phrases "it's a female", "it's perfectly okay", "it's prettier than a man", and "it's more eroticism on one person". These tactical false advertising catalysts tend to allow Futa infection in a most impressionable, naive, and cognitively compromised audience with demand for futa.

Known to pornographers and sexually experienced men for thousands of years is the fact that women are erotic if they are enjoyable during copulation. Futanari, with rigid and gigantic penises protruding from the vaginal area of a human, depicts a very obvious obstacle to deep, satisfying, intimate, enveloping penetration. Coupled with the typical emotive characteristic of this Futa human of being dominating, Futanari clearly describes a mate which is highly dissonant with that which human males have evolved to sexually desire.
Male A) "See that hermaphrodie over there?"
Male B) "Yeah. That's...quite unpleasant to think about. Are you trolling me?"
Male A) "Yeah. Haha... =D"
Male B) "Ugh."
(futa)

Later in the evening:

Male A) "Hey check out this hot hentai manga on E-Hentai."
Male B) "Whoa not bad! I haven't seen this one before."
Male A) "I'm hungry I'm gonna go make a pizza from scratch. I'll be in the kitchen." <steps out of room>
One minute passes.
Male B)"DAMMIT MAN F*CK YOU!"
Male A) "HAHAHAHAHA..."

There are no examples with multiple people experiencing enjoyment of futa because people who like futanari have various ailments which prohibit them from associating with others. Additionally, people tend not to mention the word because the concept is so revolting that it "crosses the line" of disgust, whereas Two Girls One Cup, chopped off penises, and baby-torture are absolutely dandy subjects.
by Merriam Webster Inc. November 2, 2012
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