(PAN: b:rŭ 'rotten', PC: brŭ? 'rotten').Adjective.Rotten, spoiled.Intensive: brŭ hiă.bi brŭ Transitive verb.To make rot, to make spoil.Noun. Classifier: ƀĕ.Musical instrument made from bamboo and squash. Meaning 1 Rotten, spoiled. Meaning 2 bi brŭ: To make rot, to make spoil. Meaning 3 Musical instrument made from bamboo and squash.