British and Australian slang for something so stunning, shocking, or jaw-dropping that it figuratively smacks you in the gob (mouth). A gobsmacker is the story that leaves the group chat speechless, the reveal that nobody saw coming, the piece of news that makes your jaw physically drop. It's the noun form of 'gobsmacking,' and it carries all that same energy of pure, undiluted astonishment. Used for both positive and negative shocks, it's a word that does exactly what it says on the tin.
The final plot twist was a total gobsmacker — half the cinema audience actually gasped out loud.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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(slang) Something gobsmacking or astounding.
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