Combining clothing items that according to style etiquette do not go together. Doing this as a powerful figure will result in people unquestionably approving your fashion sense, and taking you in higher esteem.
> I'll tell you what I don't do: wear a striped tie with a striped shirt!
< It's called... power clashing. And I do it because I can.
An awesome person with colorful clothes and an awesome personality. Clashionistas often are amazingly intelligent and kind of hippy-like, but not always.
Person 1: Wow, that girl Fiona is definitely a Clashionista!
Person 2: Yeah, and kinda hot too!
Person 1: Definition of a Clashionista!