have the last laugh (idiom)
1.得到最後的勝利
And thus a team that endured injuries, insults and losing streak had the last laugh. 就這樣，一支經歷傷痛、羞辱與連輸記錄的球隊得到了最後的勝利。
Democracy may yet have the last laugh in Thailand. And that is definitely what every Thai is looking forward to. 民主可能尚未在泰國得到最後的勝利，而那絕對是每一個泰國人所期盼的。
2.反敗為勝
From here on, all kinds of conspiracies will take place. Mori's government might collapse. Kato's rebellion might be extinguished. Someone else might have the last laugh and profit from this political play. 從此以後，各種陰謀會紛紛出籠，森喜朗的政府可能會垮台，加藤的變節可能會被終結，別人可能會反敗為勝，在這場政治角力中漁翁得利。
He was fired from the company last year, but he had the last laugh when he was hired by their main rival at twice the salary.去年他被公司開除，但其主要競爭對手用兩倍薪水聘請他時，他反敗為勝。
3.扳回顏面
I was bullied throughout high school but by our 10-year reunion, I was more success-ful than my classmates and had the last laugh. 我念高中時一直被欺負，但在畢業十年後的同學會中，我比任何同學都成功，扳回了顏面。
Javale got the last laugh in this one . Love that guy。Lakers never should have let him go.麥基這次扳回顏面。喜歡他，湖人不該讓他走。
Don't worry, you'll have the last laugh when you're a successful singer.別擔心，妳成為名歌手後會扳回顏面。
資料來源：京文出版社【系列四】高階英漢翻譯詞典
