Evolution, religion, and ignorance.

[Esquilax]

So, we've been getting a few evolution-denying theists around recently, and their threads attempting to poke holes in the theory have reminded me of an old question that I'd like to get an answer for, and maybe you creationists can help with that:

Is it possible to deny evolution and understand what it is at the same time?

So far, every one of you who has stated a disbelief in evolution has gone on to prove that you don't know what it is. Given that, what I'd like is for all the evolution denying theists here to let me know two things:

1. What is evolution?

2. Why do you not accept evolution?

Have at it, theists.