"Ad Gunun" means "birthday," "Mubarek Olsun" means "blessed/congratulations".
Bibi ad günün mübarək olsun 🎂🎊🎊🎁 - YouTube. Your browser can't play this video. @vaqifqurbanov2072. YouTube·Vaqif qurbanov Bibi Ad Gunun Mubarek Olsun
Commonly seen on social media (YouTube, TikTok) accompanied by videos, cakes, and songs to celebrate this family member. "Ad Gunun" means "birthday