I'm an advid cyclist, and new to ss and fixies.

I have a ss and love it. I go anywhere with it. And I was thinking of making it a fixie.

But the problem with it is:

What is a fixie?
I know that it's a fixed gear bike that turns the wheel the same as the peddle. Forward, reverse.

But there is coaster brakes in fixies, and set fixies.

So what constitutes a fixie to you?