The definition of a fashionista is someone who is focused on clothing, style and fashion shopping.
An example of a fashionista is a celebrity stylist.
Informal a person who sets or eagerly follows the latest trends as in clothing and accessories: often a humorous or derisive term
Origin of fashionistafashion + Spanish -ista, -ist
One who designs, models, or markets high-fashion clothing or who is an ardent follower or consumer of the latest clothing fashions.
Origin of fashionistafashion + -ista (as in Sandinista).