What does goyum mean?

"Goyum" is not a word in English or any other widely recognized language. It's possible that you have misspelled the word or that it's a slang term or a word from a specific regional dialect.

Could you please provide more context about where you encountered this word? This would help me understand its meaning and give you a more accurate answer. For example:

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With more information, I can help you figure out what "goyum" might mean.