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A millennial who only drinks flavored sparking water in hopes of being perceived by peers as living a healthier lifestyle. A water snob who eats unhealthy in secret. Someone who uses sparkling water as a fashion accessory.
That's totally a Croix Boi! You're such a Croix Boi! When did you become a Croix Boi?
by westover August 22, 2019
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A girl describing her male best friend who enjoys La Croix
You can tell he's her Croix Boi because they're constantly hanging out together
by hihenryitsjosie October 28, 2018
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