Women's Plus Size Mean Girls Karen Smith I'm a Mouse, Duh! Costume | Movie Costumes
Channel Karen Smith's iconic Mean Girls vibe with this Plus Size I'm a Mouse, Duh! costume. Officially licensed and designed for comfort, this look brings the beloved movie moment to life with a black chiffon babydoll dress featuring a ruffled, elasticized top and adjustable shoulder straps. The satin ribbon belt at the waist lets you tailor your silhouette—from snatched to flowy—so you can feel confident all night.
Underneath, the stretch bodysuit provides a sleek base layer with its own adjustable straps, helping keep the outfit in place and avoiding wardrobe malfunctions. And of course, no Karen outfit is complete without the ears: a headband with plush mouse ears attached to a faux fur-covered base for that perfect I'm totally a mouse, duh finishing touch.
Perfect for Halloween parties, movie nights, or any pop-culture event, this Mean Girls costume is a timeless, humorous choice that's sure to get laughs and compliments. Pair it with heels, gloss, and a dash of Karen confidence for a look that's 100% Mean Girls-approved.
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