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Of or relating to people or traits belonging to the zodiac sign Gemini, when behaving manically. Typical Gemaniacal behavior is fast, energetic, ADHD-like, whacky, witty, symptomized by the sense of having too much to say and too much going on upstairs. Whacky, eccentric, kooky. Playful, intellectual, and hyper-curious. Geminis are born between May 20 – June 21, but the Sun sign is not the only thing making someone gemaniacal, since Gemini moons can be much whackier.
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