Possible Interpretations:
* Someone who listens to metal music: This is the most likely interpretation, as "metal" refers to a genre of music. In this context, a "metaler" would be a fan or enthusiast of metal music.
* Someone who works with metal: This could refer to a metalworker, blacksmith, or someone involved in the metal industry.
* A specific term in a subculture: It's possible that "metaler" is a slang term used within a particular subculture, such as a group of gamers or online community.
To get a more accurate understanding of "metaler," please provide more context:
* Where did you hear this term?
* What was the situation or conversation?
* Who used the term?
Once I have more information, I can better understand what "metaler" might mean.