You searched for: “eisoptromaniacs
eisoptromaniac (s) (noun), eisoptromaniacs (pl)
Someone who takes every possible opportunity to look at himself or herself in a mirror: The movie star acted like an eisoptromaniac, stopping to look at himself at every opportunity as he walked past windows or cheval glasses.
A maniac who wants to keep looking at himself in the mirror.
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The Emperor was often admiring his physique which was an example of his eisoptromaniac mentality.