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Quick one, I have heard a few interpretations of this and had some suggestions
that there might be some cultural usage that isn't immediately obvious, hoping
to get some clarity.

Please forgive the poor drawing, hopefully it is clear enough!

[![Kanji](https://i.stack.imgur.com/SCm7D.png)](https://i.stack.imgur.com/SCm7D.png)
CC BY-SA 3.0
2017-04-22T11:03:11.383
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2017-04-22T14:51:40.273
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question
translation meaning nuances colloquial-language
What is the meaning of this (義兄弟) combination? Are there any cultural connotations?
It must have been written 義｛ぎ｝兄弟｛きょうだい｝.

Usually it means a brother-in-law. But, in this movie it means blood brothers:
two or more men not related by birth who have sworn loyalty to each other.
This is in modern times usually done in a ceremony, known as a blood oath,
where having each person make a small cut, usually on a finger, hand or the
forearm, and then the two cuts are pressed together and bound, the idea being
that each person's blood now flows in the other participant's veins.

[![enter image description
here](https://i.stack.imgur.com/qh6Ys.jpg)](https://i.stack.imgur.com/qh6Ys.jpg)
CC BY-SA 3.0
2017-04-22T12:01:46.810
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2017-04-22T12:23:43.470
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answer