Kǎizi shì wǎngluò liúxíngyǔ, xíngróng yǒuqián yòu hǎokàn de nánshēng.
Kǎizi is a popular internet slang term describing a wealthy and good-looking young man.
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凯子 is informal slang, primarily used among younger generations and online. It often implies someone who is both financially well-off and physically attractive.