Chou Collection, Upper Volume Radical: Mouth (kǒu) 嚧 Kangxi strokes: 19 Page 213, Entry 21 Broad Rhymes (Guangyun): Pronounced lu. Collected Rhymes (Jiyun): Pronounced lu. Lulu is the sound used to call pigs. Another interpretation states that hulu refers to laughter. Furthermore, in the Buddhist canon (Shidian), agalu is the Chinese term for agarwood.