Women's Plus Size Mean Girls Karen Smith I'm a Mouse, Duh! Costume
Information
- Dress
- Bodysuit
- Headband
- Belt
Small Moments,
Monster Memories
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| Size | Measurement | Standard | Metric |
|---|---|---|---|
| 1X | Bodysuit Chest | 44" | 112cm |
| 1X | Bodysuit Waist | 41" | 104cm |
| 1X | Bodysuit Torso | 26 1/2" | 67cm |
| 1X | Bodysuit Hips | 46" | 117cm |
| 1X | Dress Length (at side seam) | 26" | 66cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| 2X | Bodysuit Chest | 48" | 122cm |
| 2X | Bodysuit Waist | 45" | 114cm |
| 2X | Bodysuit Torso | 27 1/2" | 70cm |
| 2X | Bodysuit Hips | 50" | 127cm |
| 2X | Dress Length (at side seam) | 26 1/2" | 67cm |
| Size | Measurement | Standard | Metric |
|---|---|---|---|
| 3X | Bodysuit Chest | 52" | 132cm |
| 3X | Bodysuit Waist | 49" | 124cm |
| 3X | Bodysuit Torso | 28 3/4" | 73cm |
| 3X | Bodysuit Hips | 54" | 137cm |
| 3X | Dress Length (at side seam) | 27" | 69cm |
- Bodysuit: 94% polyester 6% spandex, Dress: 100% polyester
- Step in bodysuit has length adjustable shoulder straps
- Chiffon babydoll dress has ruffled, elasticized top edge, length adjustable shoulder straps
- Tie satin ribbon belt as desired
- Mouse ears attached to faux fur covered plastic headband
- Officially licensed
- Made By Us Exclusive
A Look That’s Totally Mouse-Tastic
Step into one of the most iconic Halloween moments in movie history with the officially licensed Mean Girls Plus Size Karen Smith “I’m a Mouse, Duh” Costume. Straight from North Shore High’s most unforgettable costume party, this ensemble brings Karen’s cheeky charm and unmistakable fashion sense to life—complete with mouse ears and that classic clueless confidence. It’s the ultimate choice for fans of early 2000s pop culture, girls’ night costume themes, or just showing up fabulously on-trend.
Flirty Layers and Playful Details
The costume features a sheer black chiffon babydoll dress with a ruffled, elasticized top and length-adjustable spaghetti straps for a flattering and customizable fit. Worn over a sleek black bodysuit with its own adjustable straps, the layered effect channels Karen’s daring but delightfully girly look—complete with that signature touch of sass.
Custom Fit, Classic Sass
A black satin ribbon belt ties at the waist for extra shape and contrast, letting you define your silhouette as desired. The included headband, covered in soft faux fur, holds two plush mouse ears in place to complete the outfit. The look is instantly recognizable, hilariously iconic, and party-ready from the moment you step in front of a mirror.
Made for Maximum Movie Magic
The bodysuit is crafted from a stretchy blend of 94% polyester and 6% spandex, while the chiffon dress is 100% polyester for light, flowing movement. Designed for plus size comfort without sacrificing style, this costume is both easy to wear and hard to forget.
Whether you're teaming up with the rest of the Plastics or going solo, this Karen-approved look delivers movie-accurate attitude with a wink and a wiggle. It’s cute, confident, and unapologetically mousey—duh.
We believe that costumes have the power to create some of life's best moments. That's why we started Made by Us. This diverse selection of costumes and accessories are all artfully designed and expertly crafted by our talented team of artists, designers, and developers.
Each project begins with a passion for true quality–embroidered patches, faux fur cut with care, and hand-selected fabrics that are as durable as they are comfortable. Those are just a few examples of how much craft and creativity we put into each and every product. Just for you.
No matter how much time it takes, our goal has always remained the same–to create products that inspire your life's best moments–the big, the small, the funny, the spooky, and the sweet. The moments we all cherish. That's Made by Us.