What does salam malaki mean in English?

"Salam malaki" is not a standard Arabic phrase. It might be a misspelling or a colloquial expression specific to a certain region or dialect.

If you are trying to say "peace be upon you" in Arabic, the correct phrase is "Salam alaykum" (pronounced "salaam alaykum").

If you have any other information about where you heard this phrase or what you were trying to say, I might be able to help you further!