From a recent discussion on the LMB list

"Skiffy-minded" is a neologism whose meaning has not quite settled down yet, but I was using it as shorthand for the kind of reader who, when presented with the Eagles' rescue of Frodo and Sam at the climax of _LotR_, thinks not on the numinousness of eucatastrophe, but instead starts madly calculating the wingspan-weight-carrying-capacity of the Eagles. And then asks, if they could do that, why didn't someone just hire them to carry our heroes to Mt. Doom on the first day, skipping all that quest business?"

A quote from Herself. I almost fell off my chair laughing so hard and had to wipe down the monitor!