Something that is complex and riddled too many issues to be workable. Fraught with uncertainties. A 'do it at your own risk' thing.
Steve Jobs famously called Blu-ray, a bag of hurt when asked if Apple planned to include a Blu-ray drive in their Macs. This was when the HD-DVD vs Blu-ray format-war was still unresolved and there was a lot of uncertainty surrounding the technology
1. AMD processors and Hackintosh? That's a bag of hurt.
2. Internet Explorer and CSS 3? That's a bag of hurt.
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