A Must-Have for College Football Banter You Can’t Spell Dumb Without Um Shirt
Inject some savage humor into your game-day outfit with the You Can’t Spell Dumb Without Um Shirt. Whether you’re poking fun at rivals or just love a bold, clever burn, this shirt is for fans who never back down from some good old-fashioned football shade.
The shirt is the ultimate piece of smack-talk apparel. With its sharp lettering in bold maize and blue, it’s a not-so-subtle jab that’s perfect for football season—especially if you’re a die-hard Buckeyes or Spartans fan. The message is clear, cheeky, and guaranteed to stir up laughs (and maybe a few groans).
The design features “YOU CAN’T SPELL DUMB WITHOUT UM (of)” in large, attention-grabbing text, making it the perfect trash-talk tee for tailgates, campus parties, or just casually trolling your Michigan friends.

Ready to talk some serious trash this season? Then it’s time to grab your You Can’t Spell Dumb Without Um Shirt and wear it loud and proud. It’s funny, it’s sharp, and it’s built for the kind of banter that keeps rivalries alive.
Product Detail :
- Classic T-Shirt G500 : 90% cotton, 10% polyester.
- Premium SS T-Shirt NL3600 : Heather Gray 90% cotton/10% polyester; Fabric laundered.
- Pullover Hoodie G185 : 55% cotton, 45% polyester.
- Crewneck Sweatshirt G180: 55% cotton/45% polyester.
- Long Sleeve T-Shirt G240 : Ash is 99% cotton, 1% poly; Sport Grey is 90% cotton, 10% poly; Dark Heather is 50% cotton, 50% polyester.
- Jersey Tank 3480 : 100% combed and ringspun cotton.
- Sleeve Raglan NL6051 : 50% polyester/25% combed ringspun cotton/25% rayon jersey.
- Ladies T-shirt : 100% preshrunk cotton; Ash Grey 99% cotton, 1% polyester.
- Size : S,M,L,XL,2XL,3XL,4XL,5XL.
- Color : A variety of colors are available, depending on the style you choose.
Care Instructions:
- Machine wash warm, inside out, with like colors.
- Use only non-chlorine bleach.
- Tumble dry medium.
- Do not iron.
- Do not dry clean.