Tā dì yī cì mǎi cǎipiào jiù zhòng le, zhēn shì xiāmāo pèngshàng sǐhàozi.
He won the lottery on his first ticket — talk about blind luck.
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Colloquial xiehouyu-style saying. Often self-deprecating: you use it about yourself to wave off praise ('I just got lucky'). Used about others, it can sting — implying their success owed nothing to skill.