我和我小伙伴们都惊呆了
[wŏ hé wŏ xiăo huŏ bàn men dōu jīng dāi le]
My buddies and I are utterly stunned. A very colloquial way to say everyone is surprised by what happened, similar to the phrase 'Mind = Blown' in English, emphasizing shared astonishment with friends.