= N =
not ready for prime time
not entirely unlike X
Used ironically of things which are
in fact almost entirely unlike X, except for one feature which the
speaker clearly regards as insignificant. "That is not entirely
unlike cool...at least it's small". Comes directly from the
Hitchiker's Guide to the Galaxy scene in which the food synthesizer
on the starship Heart of Gold dispenses something "almost, but not
entirely unlike, tea".
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.