open-mouthed

I said earlier that Trump had a love-hate relationship with Europe, and I meant it: He’s a lot closer to the befuddled accidental-tourist character in plaid shorts and flip-up sunglasses, gazing open-mouthed at the Changing of the Guard or wondering why there aren’t tours of the Bastille, than the smooth assassin out of a jewelry commercial.

At last month's Munich Security Conference I watched as delegates sat open-mouthed listening to US Vice-President JD Vance's blistering attack on Europe's policies on migration and free speech.

Both of them have an ability to produce 'wow' performances in qualifying - laps that leave people open-mouthed, thinking, 'where did that come from?'

Many watching on from the barriers were left open-mouthed at the scale of the welcome.

Piles of dead bodies are strewn in all corners; emaciated faces forever twisted in open-mouthed screams.