I Named My Kid Null – Funny Programmer Travel Mug

R$234.23 R$182.16
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Warning: May cause uncontrollable eye-rolls from family members and spontaneous laughter from programmers.

Some dads tell bad jokes. Others write bad code. This mug celebrates the rare hero who does both.

Featuring the legendary programming dad joke:

"I named my kid Null. He's an only child now."

Perfect for fueling late-night debugging sessions, pretending your code works on the first try, and reminding everyone that your humor is just as broken as your last deployment.

Side effects may include:

  • ☕ Drinking more coffee than water
  • 💻 Explaining the joke to non-programmers
  • 🤦 Causing coworkers to sigh loudly
  • 😂 Laughing anyway

Select size

More details

  • Made with stainless steel and BPA-free plastic
  • 25 oz (739 ml) - upper diameter: 3.3″ (8.4 cm), bottom diameter: 2.7″ (7 cm), height: 7.9″ (20 cm)
  • 40 oz (1183 ml) - upper diameter: 3.9″ (9.9 cm), Bottom diameter: 2.9″ (7.4 cm), height: 10.4″ (26.5 cm)
  • Insulated
  • Hand-wash only
  • Product is not microwave-safe.
  • Keeps hot drinks hot for up to 6 h, and cold drinks cold for up to 8 h
  • Fits into most car cup holders
  • Spill-proof plastic lid

Size & Fit

25 oz (739 ml) size:

  • Height: 7.9″ (20 cm)
  • Upper diameter: 3.3″ (8.4 cm)
  • Bottom diameter: 2.7″ (7 cm)


40 oz (1183 ml) size:

  • Height: 10.4″ (26.5 cm)
  • Upper diameter: 3.9″ (9.9 cm)
  • Bottom diameter: 2.9″ (7.4 cm)

Quality Guarantee & Returns

  • Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
  • Because the products are made to order, we do not accept general returns or sizing-related returns.