While it's technically possible to use it for a male, it would be highly unusual and potentially even misconstrued as it could be interpreted as being romantic or overly familiar.
Here are some better alternatives to address a male friend or loved one in French:
* Mon cher: This translates to "my dear" and is a more appropriate term of endearment for a male.
* Mon ami: This simply means "my friend" and is a neutral, friendly term.
* Chéri: While this is the masculine form of "chérie," it's still usually reserved for romantic relationships.
* Mon trésor: This means "my treasure" and is a very affectionate term.
* Mon cœur: This translates to "my heart" and is another very affectionate term.
In general, it's best to err on the side of caution and avoid using "ma chérie" for a male unless you're absolutely sure it's appropriate and understood in the context of your relationship.