Literal Translation: Old iron
Actual Meaning: A warm, hyper-loyal, deeply trustworthy brother or bro; standard friendly greeting among Northeast Chinese livestreamers.
Western Meme Parallel: My day-one bro / Homie / Fam
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Derived from the Dongbei phrase 'Iron buddy' (铁哥们), popularized globally by Kuaishou and TikTok streamers yelling '双击666,老铁!'
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