What’s up with that?

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interjection

Used to ask why something is happing or being done.

He is always arriving late, what's up with that?
Visual representation of "what’s up with that?" - Used to ask why something is happing or being done.

Often appears as...

  • what's up with that?
  • what's up with him?

Usage tips

Informal

Colloquial

Definition 1 of 2
Visual representation of "what’s up with that?"
LampPro Tip 1/3

Informal Usage

Used in casual situations among friends or peers, not in formal contexts.

Illustration for Informal Usage
You're wearing flip-flops in winter, what's up with that?
LampPro Tip 2/3

Expressing Annoyance

Can indicate irritation or annoyance about the situation in question.

Illustration for Expressing Annoyance
He left without cleaning up, what's up with that?
LampPro Tip 3/3

Seeking Explanation

Used to prompt an explanation for something odd or unexpected.

Illustration for Seeking Explanation
This app just crashed again, what's up with that?
Visual representation of the word "What’s up with that?"

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