noun. An expert in all things killy.
Real citation: “If you want a book that will alter your prospective even if you are a hard line assassinationologist or slightly skeptical about the assassination of J.F.K then this is for you.”
(Nov. 14, 2000, http://www.amazon.co.uk/Murder-Dealy-Plaza-Didnt-About/dp/0812694228)
Made-up citation: "I was faced with only two career options: assassinationologist and assassin. Frankly speaking, I am that much of an ass."