Learn what "what the hell was that for" means, when people say it, and how to use it naturally in English.

It means the speaker is demanding an explanation for something surprising, rude, or harmful.
From Why I Did It, Episode 53
Someone reacts angrily and asks what a shocking action was supposed to mean.
Use this when you are angry and want to challenge someone's action. It is rude and confrontational, so it works best in heated arguments.
Scenes unlock real expressions as you watch
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