by LyricaLearn
Entry

  1. Auxiliary verb, Godan verb with 'u' ending

    to do completely

    Kantou dialectcontraction of ..て or で plus しまうsee しまうsee ちゃう

    株ですってんてんになっちまった。
    I lost my shirt on the stock market.

  2. to do accidentally; to do without meaning to; to happen to do

    Kantou dialect

Also written じまう

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