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Plus Size Oscar the Grouch Adult Costume Onesie

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Made By Us Exclusive
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Also comes in Adult Standard .
Items Out Of Stock
  • 2X: Sep 1 2025
  • 3X: Sep 1 2025
  • 4X: Sep 1 2025
Item # FUN3473PL
Items Included
  • Hooded Jumpsuit
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Product Information

Size Chart
Size Measurement Standard Metric
2X Chest 55 1/2" 141cm
2X Sleeve Length 27 1/2" 70cm
2X Waist 55" 140cm
2X Torso Length 38 3/4" 98cm
2X Inseam 32 1/4" 82cm
Size Measurement Standard Metric
3X Chest 59 1/2" 151cm
3X Sleeve Length 28" 71cm
3X Waist 59" 150cm
3X Torso Length 38 3/4" 98cm
3X Inseam 32 1/4" 82cm
Size Measurement Standard Metric
4X Chest 63 1/2" 161cm
4X Sleeve Length 28 1/2" 72cm
4X Waist 63" 160cm
4X Torso Length 40 3/4" 104cm
4X Inseam 32 1/4" 82cm
Features
  • 100% polyester
  • Faux fur jumpsuit has a zipper down center front, elastic bands on the wrists and ankles
  • Top of hood has appliqued and embroidered eyes, long pile faux fur eyebrows
  • Printed felt sign that says Scram hangs from cords attached at the shoulders
  • Officially licensed
  • Made By Us Exclusive

Trash Talk Chic

Some folks wake up and choose violence. You? You wake up and choose grump. This Plus Size Oscar the Grouch Costume Onesie is your official license to scowl through a party, glare at trick-or-treaters, and avoid small talk with absolute legitimacy. It’s cozy, it’s cranky, and it speaks your truth—loudly, rudely, and with a felt sign that literally says “Scram.”

Ideal for Halloween, couch lounging, or any Monday before coffee, this costume isn’t about pretending to be grouchy. It’s about finally being seen.

Design & Details

Made of 100% polyester faux fur, this jumpsuit is basically a wearable blanket with attitude. The zipper runs down the front, which means it’s easy to throw on during a last-minute identity crisis. Elastic bands at the wrists and ankles help keep your grouch contained without sacrificing comfort.

The hood brings Oscar to life with appliqued and embroidered eyes, plus a glorious unibrow made of long-pile faux fur that radiates don’t-mess energy. Dangling from the shoulders is a printed “Scram” sign—because your outfit should do the talking while you quietly mutter insults to a nearby trash can. And yes, it’s officially licensed, so you’re grouching with Muppet-sanctioned flair.

Grouch Goals Activated

Let’s be honest—life isn’t all rainbows and letter songs. Sometimes you need a look that says, “No, I will not be participating in the group activity.” This onesie lets you embrace your inner trash can philosopher and grumble in glorious comfort. So zip up, hunker down, and remember: being a little rough around the edges is way more fun when you're fuzzy, green, and covered in judgment.

Made By Us
Designer Halloween costumes

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.

Costume experts designing Halloween costumes

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.

Behind the scenes of exclusive Halloween costume design

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.

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