I jumped back and fell on my ass.

我往后一跳，摔了个屁股墩。

《柯林斯英汉双解大词典》

I made an ass of myself at the meeting—standing up and then forgetting the question.

我在会议上出了个大洋相—站起来却忘了要问的问题。

《牛津词典》

To this Tink replied in these words, "You silly ass," and disappeared into the bathroom.

小叮当回答他说：“你这个笨蛋。”然后消失在浴室里。

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After this initial foray into the mainstream, Heacock observes that usage of "kick ass", "kicking ass" and "kick-ass" picked up even more frequently from roughly the year 1990 onwards.

BBC: Kentucky 'kicks ass': Taking pride in plain speaking

Their ranks include Christopher Nolan, of The Dark Knight and Inception fame, and Matthew Vaughn, director of Kick-Ass and the upcoming X-Men: First Class.

BBC: Killer role for Atonement star Ronan

Apple is taking that supposedly wasted cash hoard and kicking serious ass while the rest of the computer industry sits around sucking its thumb and starts complaining about big, bad Apple cleaning up components and shutting them out.

FORBES: Apple Flashes Cash As Japan Supply Chain Woes Continue