CHYOO is an homage to the classic 'Choose Your Own Adventure' children's series (yes, I'm going to Hell). Since CHYOO has a somewhat heavier theme, the 'A' in adventure was replaced with an 'O'. The 'O' will represent different things to different people. It could stand for orifice if you're kinky, or opening if you're myopic. Forget about its significance. It was chosen for its mellifluous tone, and also because I like choo choo trains.
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-AlteredEgo524