English · Idiom Candidate

what's up

Proposed by a contributor, not yet supported by evidence.

Also seen as: what up · whaddup · wuddup

Both English Tiếng Việt

Meaning · English

a casual greeting asking about someone's well-being

Nghĩa · Tiếng Việt

Lời chào hỏi không chính thức về tình hình của ai đó

Machine-translated — suggest a fix

Literally: question about elevation

Where it’s used: Used Widespread English

Examples

Hey, what's up?

AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)

Sources & notes

Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-31; pending editor spot-check.

Common questions

What does “what's up” mean?

a casual greeting asking about someone's well-being Literally: question about elevation

Is “what's up” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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