creationism
n. The (false) belief that large, innovative software designs can be completely specified in advance and then painlessly magicked out of the void by the normal efforts of a team of normally talented programmers. In fact, experience has shown repeatedly that good designs arise only from evolutionary, exploratory interaction between one (or at most a small handful of) exceptionally able designer(s) and an active user population --- and that the first try at a big new idea is always wrong. Unfortunately, because these truths don't fit the planning models beloved of {management}, they are generally ignored.
creep
v. To advance, grow, or multiply inexorably. In hackish usage this verb has overtones of menace and silliness, evoking the creeping horrors of low-budget monster movies.
creeping elegance
n. Describes a tendency for parts of a design to become {elegant} past the point of diminishing return. This often happens at the expense of the less interesting parts of the design, the schedule, and other things deemed important in the {Real World}. See also {creeping featurism}, {second-system effect}, {tense}.