drop (one's) teeth
To show surprise. I don't know why everyone dropped their teeth when they heard I got the promotion—I'm as qualified for it as anyone!
drop one's teeth
Fig. to react with great surprise. I almost dropped my teeth when she told me her news. They dropped their teeth when I told them I was married.
drop one’s teeth
tv. to react with great surprise. I almost dropped my teeth when she told me her news.