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Not a Bug, It's a Feature Funny Coding Joke Coffee Mug

4.8 out of 5 stars rating
22279 Total Reviews |
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Style: Classic Mug

Make every sip a little more personal with a custom Classic Mug from Zazzle. Perfect for gifting or treating yourself, choose from a world of unique designs, add your favorite photo, personalize with a name or monogram, or find something fun that makes you smile. Create a one-of-a-kind mug that's uniquely yours.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.2” D x 3.8” H
    • 15-ounce: 3.4” D x 4.5” H
  • Microwave and dishwasher safe
  • Use caution when removing the mug from the microwave. Use a pot holder or glove as necessary if it is too hot to the touch. Do not microwave an empty mug
  • Strong, ceramic construction
  • Meets FDA requirements for food and beverage safety
  • Do not overfill and be careful with hot liquids that may scald
  • Keep out of reach of children when filled with hot liquid
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About This Design

Not a Bug, It's a Feature Funny Coding Joke Coffee Mug

That weird behavior? Totally intentional. A dark terminal window with green highlight text spells out the classic excuse, printed on both sides of a white mug. Keep it next to the keyboard for long debugging sessions and morning stand-ups. A funny coworker birthday present for QA testers, help desk heroes and developers.
Punsmith Tees
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Customer Reviews

4.8 out of 5 stars rating22.3K Total Reviews
19611 total 5-star reviews1855 total 4-star reviews349 total 3-star reviews162 total 2-star reviews302 total 1-star reviews
22,279 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By Maureen Z.May 8, 2022 • Verified Purchase
Classic Mug, 11 oz
Zazzle Reviewer Program
It is a lovely mug. The actual mug is shiny and smooth. Very nice quality. It was everything I expected. Zazzle has so many nice mid century modern designs to choose from. All so pretty! The design was very clear and looked expensive.
5.0 out of 5 stars rating
5 out of 5 stars rating
By RachelMay 16, 2020 • Verified Purchase
Classic Mug, 11 oz
Zazzle Reviewer Program
Got a personalized coffee mug for my husband as a birthday gift from our kids. He lovessss it!! Turned out really nice! The pictures were really clear!! Great product!! The pictures were really clear!!! They turned out great!!
5.0 out of 5 stars rating
5 out of 5 stars rating
By Steven B.November 19, 2023 • Verified Purchase
Classic Mug, 15 oz
Zazzle Reviewer Program
This product caught my eye as the perfect gift that acknowledges the lifelong nurturing of mothers. All cups were individually and securely bubble wrapped for easy reshipping. (nice touch) Printing is a bit small for me to read but I look forward to blessing my daughters and others with this message of their sacrificial love. Thanks much. Printing was a challengingly small for me to read.

Tags

coding humorits a featurebug reportsprint planningqa testerit supportcoworker birthdaydaily standupterminal windowcomputer programmer

Other Info

Not a Bug, It's a Feature Funny Coding Joke Coffee Mug
Product ID: 256349495446975070
Created on: 10/25/2026, 12:58 PM
Rating: G