Somewhat like pooping out a lump of concrete the size of a 2L softdrink bottle, while a sadist with a baseball bat takes great pleasure in beating the base of your spine for about 7 hours.
Oh, and right at the end, the crowning bit? Like sitting on hot coals with no pants on. Overall - OUCH.

Definitely this but in my experience the bastard hit me with a baseball bat for 18 hours!!!

Usually when i am in pain i am deadly quiet and DP knows this and so when i was screaming through every contraction he knew i was in ALOT of pain so he never asked what it was like.