I usually use derpy as "well-meaning but perpetually flawed in execution". It's often used by my colleagues and me to describe a mistake or state-of-mind that

I usually use derpy as "well-meaning but perpetually flawed in execution". It's often used by my colleagues and me to describe a mistake or state-of-mind that can be fixed but temporarily caused suffering or inconvenience. Almost always admits utility or value outside of the specific thing causing annoyance. For example: "Yeah, the RAID card on that box is kinda derpy--usually fine, but it loses its damn mind on hibernate." Or: "The way IE11 handles web workers is kinda jank. We tried using transferable objects, but for some reason it derps and trips all over itself in the sending worker."