disaster, fashion victim
, fashion faux pas
, wearing a regular clothing item in a way that highlights your incompatibility with the selection. Something no person can wear in public without causing alarm to SPCA or PETA. A person who is not able to purchase clothing that fits.
Anything worn by Lady Gaga is a fashtastrophy, anything worn by Cyndi Lauper in 1980's, Don Johnson in Miami Vice, the entire wardrobe of Dallas tv series, Eurotrash. Someone who isnt young or hot trying to get into a nightclub with a small outfit. Anyone who isnt Kylie Minogue wearing her clothing. Anyone who takes fashion advice from Britney spears.