As an Indonesian I feel very sad to hear that sentence, the sentence is very very rude and only used when we really feel angry with someone
i keep getting marked wrong when i answer this in natural english. 'mereka' is plural and 'brain' singular. one would therefore hope that each could possess their own brain. however, if that seems unlikely...
we would add more here to level this insult with emphasis on (lacking even) a singular brain: 'they don't have a brain between them'.
otherwise, 'they don't have any brains' or 'they don't have brains' or 'they have no brains'.
No otak? Ok . Ini hanya dipake ketika marah!! Its aa relly wierd statement :/
I am not a native English speaker and I have always wondered if you can put singular after plural like "They don't have a brain". I have read a sentence "The boys brought a hatchet with them" in my English textbook. If it is grammatically correct, then "They don't have a brain" is also correct? Or maybe the boys in the latter sentence brought one hatchet for everyone.