Funny 'Holy Shift Mother Function' Math Geek Mug

Give a made-to-order mug from Zazzle to someone special, or treat yourself to a design that brings you joy or makes you laugh. Create your own photo mug, shop our collection of the funniest joke mugs, personalize your mug with a monogram, or express yourself with one of our 10 million designs.

• 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
• Printed on demand in Reno, NV
• Do not overfill and be careful with hot liquids that may scald
• Keep out of reach of children when filled with hot liquid