How do you say salty in creole?

Actually, there is no such language as "Creole."

The Word Creole describes any language that is a stable, full-fledged language originating from a pidgin (which is a language composed of two or more unrelated languages).

The most common creolized languages are Haitian Creole, Louisiana Creole, Jamaican Creole, and Tok Pisin.