Whether you think it's from a (like British or Australian English)?
(e.g., a movie, a social media post, a book)? Any other words from the sentence or surrounding lines? bloody matures
Is it possible "matures" was intended to be another word, like "bloody matures" for "bloody amateurs" ? This is a very common phrase used to describe someone unskilled. To help me track down the specific text, could you share: Whether you think it's from a (like British