In postcolonial Melanesia, cultural discourses are increasingly organised around creole words, i.e. keywords of Bislama (Vanuatu) and Tok Pisin (Papua New Guinea). These words constitute (or represent) important emerging ethnolinguistic worldviews, which are partly borne out of the colonial era, and partly out of postcolonial ethno-rhetoric. This chapter explores the word kastom ï¿½traditional cultureï¿½ in Bislama and pasin bilong tumbuna ï¿½the ways of the ancestorsï¿½ in Tok Pisin. Specific attention is paid to the shift from ï¿½negative ï¿½ to ï¿½positiveï¿½ semantics, following from the re-evaluation of ancestral practices in postcolonial discourse. Social keywords in postcolonial discourse form a fertile ground for understanding how speakers in Melanesia conceptualise the past as a vital part of the present.