Frutiger Aero Yams Frutiger Aero Yams is a brainrot slang term and catchphrase referencing both someone's buttocks designed in the Frutiger Aero aesthetic and, more literally. Frutiger Aero Yams is a brainrot slang term and catchphrase referencing both someone's buttocks designed in the Frutiger Aero aesthetic and, more literally.