This engineer mug funny design gets its laugh from a genuine circuit diagram: “What part of…” above the schematic, “…don’t you understand?” below it.
Why this is one of our better engineer mug funny picks
- Genuine circuit diagram schematic with “What Part Of… Don’t You Understand?” text
- High-quality ceramic, 325ml (11oz) capacity
- Dishwasher and microwave safe
- Hand-printed in Australia with a vibrant, long-lasting print
It’s a knowing gift for an electrical or electronics engineer who can actually read the diagram. Browse the rest of our engineering mugs.











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