You are going to school, and have thought out the greatest combination of outfits that will immediately make you the center of attention. However, your mother suddenly says in the morning,
No, you're not wearing that fancy-outfit-that'll-make-you-popular to school. You're going to wear this really corny T-shirt that says "I <3 Mommy".
What kind of sane teenager would say "Okay mom" at this point?
I'm not sure about you, but I don't like being told what to wear.
No. If you are a sane child, you will refuse to wear that "I <3 Mommy" t-shirt, and proclaim that you will wear your fancy outfits neatly aligned in your personal closet that even your mom can't access.
Your mom sighs. "All right, dear." She says reluctantly. "But if you want to wear those outfits, you'll need to pay me. AND you'll only have a chance of wearing them. Just because you pay me, doesn't mean that you'll get to wear them."
This is where the "fashionogi" are located. They will actually pay their own mothers for a chance to wear the clothes that will supposedly make them popular, and often complain to their friends that their mom isn't fair if they do not get this "chance". Even afterwards, they may give even more money to their mom just for another chance at being able to wear the outfit that belongs to them in the first place.
The irony of this situation is that if you simply wanted to wear those clothes, there were many ways you could have sneaked by your mom: whether it's wearing the things under your "I <3 Mommy" t-shirt, or hiding the outfits in your backpack, there are ways to escape the tyranny of your mother.
...and that is what I think of when I see a fashionogist. Someone who is excessively obediant to someone for the things they already have, either because they're stupid, or want the attention from people who will only judge their looks.
Feel free to rage or laugh at my strange analogy--that's really what I was hoping to achieve anyways.