That's so fetch! Dress up as Mean Girls, Gretchen Weiner from the iconic teen movie of the 2000s, Mean Girls. Gretchen is the biggest gossip from The Plastics, and loyal friend to the meanest of the Mean Girls, Regina George. This licensed costume includes pink top with Gretchen's unique saying That's So Fetch! in glitter print, plaid mini skirt, necklace.