So much for the camp fire theme:
"Historical Theological Definition
Historically, fundamentalism began as a reaction against theological liberalism. The movement takes its name from a serious of pamphlets first published beginning in 1909. These were later edited into a twelve-volume collection of books called "The Fundamentals". Many important theologians from various denominations contributed to the work. The writers came up with five core beliefs that were essential to historic orthodox protestantism:

Literal inerrancy of the autographs;
The virgin birth and deity of Christ;
The substitutionary view of the atonement;
the bodily resurrection of Christ;
The imminent return of Christ.

Modern Ecclesiastical Definition
The modern ecclesiastical definition of fundamentalism has definitely narrowed. In the late 1930's and 1940's, Pentecostal Christians tried, and failed to become associated with the movement. Despite subscribing to all five of the Fundamentals, Pentecostals were mostly shunned by the fundamentalist leaders of the day as being uneducated and freakish. They eventually gave up and went their own way.

Many second and third generation fundamentalists grew unhappy with the increasing separatism and militancy of the older fundamentalists. Rather than separation, they advocated cooperation and infiltration as a means of combating the liberalism in the mainline Protestant denominations. In the mid-1950's the term neo-Evangelical was coined and has since been used to differentiate between hard-line fundamentalists and their softer, friendlier brothers.

Modern Popular Definition
Today, the American populace at large would refer to any conservative, literalist Christian sect as being fundamentalist . For example, Attorney General John Ashcroft is commonly described in the press as being a fundamentalist, even though, strictly speaking, he is Pentecostal. Evangelist Billy Graham is also popularly known as a fundamentalist, even though many fundamentalists according to the ecclesiastical definition disowned him years ago.

Modern Evangelical Christian Definition
Evangelical Christians would have yet another definition of fundamentalism, limiting it to strict, right-wing Baptists. Although certain other Reformed and Anabaptists traditions would also be seen as being fundamental, the denomination most commonly identified with fundamentalism would be the Baptists. These types of fundamentalist are the least flexible in their interpretation of Scripture and rigid in their lifestyles. The most famous contemporary figure that would fit into this category would be Jerry Falwell. Interestingly enough, even he is seen by many of these fundamentalists as being too liberal and compromising! There are many different camps and flavors of this group, of varying extremity. Under my "Flavors of Fundamentalism", only Mainline IFB and X-Treme Fundamentalism truly fit under this tent, with Reformed Fundamentalism having perhaps one foot inside the door."
http://www.x-tremefundamentalism.com/

I think it's safe to say that the term fundementalist depends on context. Creationism on the hand is pretty clear cut. I would say a Creationist is someone who thinks they have lost faith and is desperately attempting to misuse science in vain attempt to regain faith. Or basically it sort of like someone who thought *someone else* stole something (but he didn't "have it" so it wasn't even possible to have it stolen).

I'm even going to try to make this somehow related to space:)