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expressions (phrases, clauses, etc.)
knock on wood, touch wood, heaven forbid, God help me, absit omen!
spoken to ward off misfortuneword usually written using kana alone-
カミナリが光ったその後【くわばらくわばら】と唱えたもしくは、唱える人を見たことがあるだろう。
I expect you've chanted "kuwabara kuwabara" after a lightning flash, or have seen somebody do so.
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