If you mean in a situation where a person/friend/significant other is questioning you in an accusatory manner, then it would basically be a literal translation: "Are you interrogating me right now?" It's like indignantly accusing them of being unduly suspicious and acting like the police.

In context of talking to an annoying child, for example, who is asking for something?)) Or in more formal situations?

Can you give some examples of what situations you're most likely to hear this phrase?