Who do you think you're talking to?

Meaning

This is a classic line used when someone feels disrespected or ignored by a person of lower status or audacity. It serves as an immediate warning that the speaker demands more deference.

Aggressive, warning

Used in a sentence

• You better watch your tone with me; who do you think you are talking to?
• The customer started shouting at the clerk, who replied firmly, who do you think you are talking to?
• Don't you raise your voice at me, son; who do you think you are talking to?