Pai Lum is actually the common name of the style. The full name is Pai te Lung Ch'uan Shi'ang Kung Fu. ntc translated it as "Pai Family's Dragon Fist Kung Fu." Grand Master Pai was the one who said his surname means "white." I figure he would probably know... The choice of "lum" rather than "lung" in not so big of a stretch, considering that there were hundreds of dialects spoken in Mainland China at the time Po Fong Pai, Danial K. Pai's grandfather and the true founder of the style, immigrated. (He came over durring the mid 1920s) Could also be cr@ppy rominization, too.