(literally: grubby girl); teenage girl who stays away from home and hangs out on the streets, usually promiscuous and vulgar in their mannerism
Definitions (粵典–words.hk)
名詞、俚語、黃賭毒
八、九十年代香港出現嘅社會現象，指少女離家出走游盪街頭，因為無地方梳洗而成身老泥，有啲甚至會用性交換取一飯一宿、甚至毒品 （literally: old grubby girl） teenage girls who stay away from home and hang out on the streets, or who hang out on the streets, getting involved in drugs, promiscuous sex, etc., "bad girls".