Top definition
A person who spends most of their time watching porn and is intimately familiar with most porn stars and their mating behaviour.
Joe: Hey how come Trevor never gets out much?
Frank: He's a pornothologist...lots of studying to do.
by rediroma May 19, 2009
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2
A person who makes videos of birds having sex
Jeffrey is a pornothologist. He filmed birds mating.
by awmm January 17, 2017
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