The only reason we use words is to convey meaning and when you doggedly stick to outdated or inappropriate definitions of words you distort or destroy their meaning. You might as well not even say futanari because people have no clue what the hell you even mean.
tdlr: Your definition means nothing when it applies to such completely different concepts.
So me using the only definition of the word instead of jumbling words like an uneducated Imbecile that butchers other cultures' language for no other reason than that you're fucking stupid somehow is a bad thing?
Also, there is absolutely nothing inappropriate about the word's meaning. If anything it's inappropriate that you're appropriating their language.
BTW. It's not "my" definition. It's literally THE Japanese definition of the word.
