Grumpy Cat Costume T-Shirts

Description: A hilarious and slightly morbid illustration of a grumpy orange cat wearing a black hooded costume. With its unimpressed expression and a trail of dead fish floating below it, this design perfectly captures sarcastic cat energy and dark humor. Whether you're a proud cat parent or just love funny animal memes, this design is a great way to show off your quirky sense of humor. Perfect for t-shirts, hoodies, stickers, tote bags, and mugs!

Description: A grumpy-looking cat dressed in an adorable reindeer costume, complete with antlers, a bright red nose, and a cozy red scarf. A perfect Christmas gift for cat lovers who adore quirky feline expressions, festive illustrations, and cozy winter vibes.

Description: A grumpy black cat dressed in a bright pumpkin costume brings sarcastic attitude to Halloween. Featuring vivid orange, purple, pink and green details with the humorous phrase “This Costume Is Less Flattering on Me,” this colorful Halloween design is made for black cat lovers, cat fans and anyone who enjoys playful seasonal humor. O.M design

Description: A funny and adorable grumpy cat wearing a whimsical star or flower petal hat costume with rosy pink cheeks. A charmingly quirky design for pet owners who love humorous and cute animal illustrations.

Description: cute grumpy cat in dragon costume

Description: Celebrate black cat Halloween with a grumpy black kitten dressed as a bat. This spooky feline design brings together mischievous expression, bat costume details, and October atmosphere for cat lovers and Halloween fans. Great for costume parties, trick or treating, haunted house nights, autumn gatherings, or anyone who enjoys witchy animal art and playful spooky style.

Description: A grumpy Halloween ghost holding a “Meh” coffee mug and an adorable black cat beside a spooky jack-o’-lantern, perfect for sarcastic spooky season humor.

Description: A funny black cat wearing a cozy reindeer outfit and bright red scarf. Perfect for cat lovers who enjoy cute holiday animals, grumpy cats and cozy Christmas vibes.

Description: A grumpy cat dressed as a vampire, holding a jack-o'-lantern candy bucket with an unimpressed expression. Perfect for Halloween lovers, cat owners, spooky season fans, and anyone who enjoys sarcastic cat humor and cute Halloween art.

Description: A weary vintage ghost cuddles a wide-eyed fluffy black dog while holding a steaming cup of coffee. A quirky spooky-season illustration combining gothic Halloween humor, tired moods, dog-loving energy, and retro autumn style.

Description: This unimpressed kitten isn't thrilled about being forced into a neon monster onesie for Halloween. A vibrant, acid-washed halftone print that captures the mood of every reluctant party-goer.

Description: This ghost cat is having none of your trick-or-treat antics. Sitting inside a cardboard box filled with candy corn and sweets, this irritated feline wears a classic sheet costume with custom ear cutouts. Perfect for introverts who appreciate dark humor and sarcasm during the autumn season. Add some moody humor to your October celebrations with this funny, stubborn pet character.

Description: Get ready for spooky season with this hilarious ghost cat design. Perfect for cat lovers who enjoy funny Halloween costumes and cute, grumpy kittens dressed as little spirits.

Description: Hand-drawn Halloween badge: a grumpy black cat in a witch hat, sitting on a pumpkin under a big orange moon. "This isn't a costume." Works on light and dark shirts — great as a sticker too.

Description: Bring the ultimate sarcastic energy with this funny shark hat cat. Featuring an offensive, mean cat paired with the blunt text "Fun Fact I Don't Care," this design is perfect for meme lovers, introverts, and anyone who has completely run out of patience.

Description: A funny grumpy cat dressed as a ghost carrying a trick-or-treat candy bucket. Perfect for Halloween lovers, cat fans, spooky season enthusiasts, and anyone who enjoys cute yet sarcastic Halloween humor.

Description: Grumpy Ghost Cat Trick or Treat | Funny Halloween Cat design featuring halloween-cat-ghost, cat, cat costume, cat ghost, cats. Perfect gift for fans.

Description: A grumpy black cat dressed in a bright pumpkin costume brings a funny attitude to Halloween with the phrase “This Costume Is Less Flattering on Me.” Bold neon colors, spooky bats, a skull, stars and playful Halloween details surround the unimpressed cat, creating a vibrant seasonal design for black cat lovers, cat fans and anyone who enjoys funny Halloween artwork. O.M design

Description: A funny grumpy cat dressed as a ghost carrying a trick-or-treat candy bucket. Perfect for Halloween lovers, cat fans, spooky season enthusiasts, and anyone who enjoys cute yet sarcastic Halloween humor.

Description: A grumpy Halloween cat dressed in an adorable bat costume with a bold “EEK” horror caption. A cute and spooky design for cat lovers, Halloween fans, bat enthusiasts and anyone who loves sarcastic spooky-season humor.

Description: Lapewpew

Description: This orange devil cat design says You’ve Got to Be Kitten Me, This custom design is suitable for devil cat lovers and also suitable for Halloween

Description: Get ready for double the grumpiness with this hilarious design featuring a disgruntled cat in a shark costume declaring, "This isn't funny, Karen." Perfect for cat lovers and anyone who appreciates grumpy humor.