The study of Pirates and Pirate related things. May also refer to a spiritual belief system espoused by the Church of Pirateology in which they believe that living like a Pirate will improve your life immeasurably.
John is so into reading about Pirates, he is a Pirateologist.
I love Pirateology. I have learnt all I can about Pirates.
I believe in Pirateology as since I've become a Pirate my life has got so much better.