影视英语口语:坐稳咯

“坐稳咯”在英语口语里能怎么说？

蹩脚口语：don't so astonished
地道口语：hold on to your hats

影视来源：《欢乐合唱团》

剧情引导：因为拍摄学校的年鉴，Rachel逮住了一个让合唱团成名的机会，她拉到了一个让大家接手拍商业广告的美差，开会宣布之时大伙儿老激动了……

Rachel: Okay, look, I realize now that all of you think that glee club is just a joke. Okay, and you're convinced that we can't win, and you're content to just sit idle by until Figgins cancels the club. Well, I'm about to present to you a rare opportunity. The opportunity to become stars.
Quinn: How?
Rachel: We've all been cast in a local commercial.
Finn: Are you serious?
Rachel: Yes, finn, and while all of you have been so concerned with your appearance in this school, I've landed glee club its first big break. Simply put, making us all celebrities. Okay, and no one messes with celebrities or defaces their pictures.
Tina: What's the commercial?
Rachel: Hold on to your hats and get ready to sell ... some mattresses!