However, depending on the context of "mengao", you could consider using these words:
* "Mané" - This word is similar to "mengao" in that it refers to someone who is foolish or naive.
* "Bobo" - This word means "stupid" or "silly".
* "Zé Ruela" - This is a more derogatory term for someone who is foolish or lacking in intelligence.
It's important to understand that these words carry different connotations and can be considered offensive depending on the context. It's best to use them with caution.
If you can provide more context about how "mengao" is being used, I might be able to suggest a more accurate translation.