What does bron-yr-aur mean?

bron-yr-aur meaning in Urban Dictionary

a lovely song by Led Zeppelin and it means "Golden Breast". Its where Robert Plant invested a number of his time as a child which is also where Led Zeppelin wrote lots of their songs like Bron-Yr-Aur, Bron-Yr-Aur stomp, Immigrant Song, and a whole lot more.