Quote Originally Posted by afghooey
I'll give one more hint:

When you grasp it, it doesn't disappear. But it is no longer what it was.
Shit?

I can live for millions of years, but I am constantly changing. -Shit can be fosselised sp?
When you try to grasp me, I slip through your fingers. shit's slippy
If you did grasp me, I would be no more. you'v changed the shape of the shit
What am I? shit?