A person whom, for one reason or another, prefers sexual relations with a dead human being over a living one. Usually a previous aquaintance and generally preserved similarly to a sex doll.
(see Sexy Loser)
(opinion)- I believe that, thought not unfounded, necrophelia is one of the most peculiar and awkward fetishes. Worse than consensual defication and clown sex but not as bad as homicidal arousal and bestiality