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Knock Knock Who’s There Doctor Shirt – Blue Police Box TARDIS Graphic Tee

From $ 16.99

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The Knock Knock Who’s There Doctor Shirt is a 100% cotton tee for Whovians who love a good punchline almost as much as they love a blue police box. What makes this Funny Blue Police Box TARDIS Graphic Tee for Whovians & Sci-Fi Fans unique? It sets up the world’s shortest joke “KNOCK KNOCK / WHO’S THERE? / DOCTOR”, paired with a weathered TARDIS illustration on the left. This Perfect Birthday Gift for British TV Fans works for Comic-Con conventions, fan meetups, sci-fi watch parties, or any day you want fellow fans to finish the joke in their heads.

About Knock Knock Who’s There Doctor Shirt

Every Whovian knows the feeling. Someone says “Doctor,” and your brain immediately adds “Who?” That’s the magic this shirt captures. The distressed, vintage typography gives it a worn-in, 1970s feel, matching the classic era of the show. The blue police box illustration isn’t just a prop; it’s the most recognizable symbol in British sci-fi. But here’s the clever part: the joke never actually finishes. There’s no question mark after “Doctor.” The viewer supplies it. For the fan who’s watched every regeneration, cried at every companion departure, and argued about the best showrunner, this tee is a secret handshake. Wear it to a con. Someone will smile. Someone will say, “Doctor who?” And you’ll both laugh.

Knock Knock Who’s There Doctor Shirt featuring a blue police box TARDIS graphic and white distressed text on a black t-shirt

Knock Knock Who’s There Doctor Shirt Specifications

  • Short sleeve classic tee with tubular construction (no side seams)
  • Fabric weight: 5.0–5.3 oz/yd² (170–180 g/m²)
  • 100% cotton, 0% recycled polyester, 0% dangerous substances
  • Taped neck and shoulders for lasting shape
  • Double seam at sleeves and bottom hem
  • DTG print using Oeko-Tex™ certified Kornit water-based inks
  • Knock Knock Who’s There Doctor Shirt Safe for children’s clothing and low environmental waste
  • Available sizes: S, M, L, XL, 2XL, 3XL, 4XL, 5XL

Comfort & Fit

This tee breathes easily during long convention days or binge-watching marathons. The mid-weight cotton feels soft but holds up to cosplay, travel, and frequent washing. Water-based inks keep the TARDIS and text flexible across your chest, so no cracking ruins the vintage vibe. The classic cut gives your shoulders room to move while reaching for another jelly baby or sonic screwdriver replica.

Size Guidance

Order your normal size for a relaxed, everyday fit. Want a trimmer look for a fan meetup? Size down one. Prefer an oversized tee for comfortable lounging during a classic series rewatch? Size up. Extended sizing up to 5XL ensures every Whovian finds their perfect fit.

Care Instructions

Machine wash cold, inside out, on a gentle cycle with similar colors. Skip fabric softeners—they can fade DTG ink over time. Tumble dry low or hang dry to protect the print. Cool iron inside out if needed, but never iron directly on the design. Do not dry clean.

Why You’ll Love Knock Knock Who’s There Doctor Shirt

  • The joke that keeps on giving: Only fellow fans will get it. That’s the point.
  • Vintage aesthetic that travels: Distressed text and weathered TARDIS look like a collector’s item.
  • Safe for sensitive skin: Oeko-Tex™ certified inks and zero high-concern chemicals throughout.

Finish the Joke, Grab Your Knock Knock Who’s There Doctor Shirt Today

You know the answer. They know the answer. Now wear the setup. The Knock Knock Who’s There Doctor Shirt is the perfect gift for Whovians, sci-fi fans, or anyone who’s ever whispered “Doctor Who?” at a screen. Great for birthdays, Comic-Con, or just because time travel deserves a good laugh. Pick your size and let the punchline write itself.

Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in USA will be shipped by USPS depending on the weight and size of the product.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 3-6 Business days
Canada, Europe 3-6 Business days
Australia, New Zealand 4-7 Business days
Central & South America 4-7 Business days
Asia 6-10 Business days
Africa 8-14 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of merchku.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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