flaky adj. (var sp. `flakey') Subject to frequent
{lossage}. This use is of course related to the common slang
use of the word to describe a person as eccentric, crazy, or just
unreliable. A system that is flaky is working, sort of -- enough
that you are tempted to try to use it -- but fails frequently
enough that the odds in favor of finishing what you start are low.
Commonwealth hackish prefers {dodgy} or {wonky}.