What does que ta chendo mean?

"Que ta chendo" is not a standard phrase in any widely spoken language. It is possible that it is:

* A misspelling or a typo. Could you double-check the spelling?

* A regional dialect or slang. It might be a specific phrase used in a particular location or community. Could you provide more context?

* An incomplete sentence or phrase. There might be missing words or context needed to understand the meaning.

Please provide more information so I can help you understand the meaning of this phrase.