WHAT DOES keffer mean southafricaans?

There is no word "keffer" in South African English or any other South African language. It's possible you've misheard or misspelled the word.

Could you please provide more context or try to remember the word you heard?

For example:

* Where did you hear this word? (e.g., a conversation, a song, a movie)

* What was the situation? (e.g., someone was angry, someone was joking, someone was talking about a specific topic)

* What do you think the word might mean?

With more information, I can help you figure out what word you might be thinking of.