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Someone who knows too much about sex. So deep about sex. A mind sex perv. But doesn't act porn or isn't a fuckboy. Normally the knowledge is gained from watching too much porn and reading or watching lots of erotic stuff.
Alice: Damn Luke, you such a fuckboy.
Luke: You're wrong, I'm just a sexcylopedian.
by Lovingtone Luke June 26, 2018
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