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adj. Chiefly British Slang
Extremely surprised or shocked; astounded: I was gobsmacked to learn that my cousin is a spy.
slang Brit astounded; astonished
[C20: from gob3 + smack2]
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|Adj.||1.||gobsmacked - utterly astounded|
colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
surprised - taken unawares or suddenly and feeling wonder or astonishment; "surprised by her student's ingenuity"; "surprised that he remembered my name"; "a surprised expression"