Here's a breakdown:
* Est-ce - This is the contraction of "est-ce que", meaning "is it" or "is it that".
* fait - This is the past participle of the verb "faire", meaning "to make" or "to do".
* mauvais - This means "bad" or "poor".
So, the full sentence means "Is it made badly?" or "Is it done poorly?".
The sentence is asking about the quality of something. It's a way to inquire if something was done well or if there are issues with its quality.