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Pre-Coffee Output May Contain Errors Mug, Funny Programmer Coffee Mug, Developer Gift for a Coworker, 11 oz

Price:$15.99

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Highlights

Pre-coffee output may contain errors.

A code editor window full of lines of code, with red squiggly underlines and a warning sign, between the words PRE-COFFEE OUTPUT and MAY CONTAIN ERRORS.

White ceramic 11 oz mug, with the design printed on both sides.

Also available with a retro computer monitor, as the Pre-Coffee Output May Contain Errors Mug, Retro Computer Bug Gift.

Artwork created with AI image tools.

Printed and shipped by our production partner, Printify.

Production partners

FrayedNotion makes this item with help from
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  • Order today to get by Nov 16-28
  • Returns & exchanges not accepted
  • Cost to ship: $7.29
  • Ships from: Hialeah, FL

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Listed on Oct 3, 2026