Origin in electronics distribution, but has now started to find a wider circle.
Something that you would be expected to achieve with ease. Usually, something that would embarrass you in front of colleagues and peers.
1. Having left my car in gear in the garage before going on holiday, i returned home started the car and promptly jumped forward and demolished a wardrobe and a (good portion of the car). "I have completely Naismithed my car"
2. After accidentally poking myself in the eye with a pencil while attempting to scratch my forehead, a colleague remarked "i think you just Naismithed"
3. Phoning the wrong supplier to ask for a quote for a product they don’t do. Then insisting that it is them that has made the mistake "i have made a complete Naismith of this quote"