A very nervous Viking (yes, yes, again it's Ironfest, go with it) holds the quintain ready while m'lady charges at it with her destrier (or the modern day equivalent of one).
A quintain is a target which rotates when struck with a lance; you get points for each rotation. A destrier is the type of horse that was used in the middle ages. Read the late Michael Crichton's book Timeline if you want more information.
She struck it close to square on to score, if I recall correctly, 5 rotations.