2sik ching ngh gaai 色情五街 — [five sex streets] the five streets in the Mongkok area of Kowloon where the sex trade is concentrated, i.e. Portland Street, Shanghai Street, Soy Street, Reclamation Street and Shandung Street (ty 4.12.2001, D1).
3sik jung ngoh gwai 色鬼餓鬼 — [sex hungry ghost] a sex maniac, a sexual pervert.
4sik lohng 色狼 — [sex wolf] a sex maniac, a sexual pervert (st 1, 29).
5sik mo 色魔 — [sex devil] a sex maniac, a sexual pervert (st 1, 13); a rapist.