Oh, you were looking for the energy density of an organic radical battery, too? Too bad. As far as I can tell, no one has any idea what the hell unit of measure a yuiyiiycm is. Some guy made a typo, which was then copied into a dozen other articles on ORB's by people who wanted to look smarter. Sucks to suck.

It’s an acronym standing for Can’t Remember A Fucking Thing. It’s usually used to describe embarrassment at being unable to remember someone (CRAFT moment); going onstage as the lead in the latest theatrical performance and your mind goes completely blank (CRAFT situation); the next morning after a night when you got pissed as a fart and woke up in bed cuddling a traffic cone and a string of fairy lights wound round your prick.