Definition of "gobsmacked"

That wad mack im about yam sick, so ower Ilkla' moor bar-tat wish un best of luck at Ilkley Station, and when he landed back Martha wad be fare gob smacked at the yarns he wad tell 'er about Yorkshire clod-hoppers.

1925 December, A Yorkshire Clod-Hopper, “From a Yorkshire Clod-Hopper”, in The Bee-keepers' Record‎, volumes 49-53, J. Herrod-Hempsall, retrieved 2018-06-08, page 175

We were as appalled and stunned and confused and gobsmacked (punched on the mouth) as anyone else.

1989 August 7, Glenn Frankel, “Salman Rushdie's Life on the Run”, in Los Angeles Times

"I guess the word would be gobsmacked," Barclay said, of his reaction. "I am stunned."

2008 June 16, Caroline Mallan, “Linwood Barclay novel wins a plug on key UK book list”, in Toronto Star, Canada, page A2

Far from the stage, a woman approached them and said she could tell they were big fans, so she was upgrading them to the front row. “We were absolutely gobsmacked,” Ryan said.

2023 August 10, Matthew Cantor, “‘Paul McCartney winked right at me’: the fans who buy nosebleed seats – and get whisked to the front”, in The Guardian, UK