Plus Size Oscar The Grouch Adult Costume Onesie

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.