Speaker A tells speaker B that he feels like he's seen her before, speaker B
responds with:

> あんたアレでしよ？哲也兄がこっちで舎弟にしたっていう

And speaker A replies:

> 哲也兄！ ？ っていうか俺そういう扱いなの！？舎弟って、俺あのハゲに兄貴分らしい事何一つされてないんですけど！？

What I'm confused about is why does speaker A call Tetsuya "哲也兄" - Tetsuya nii
when the 兄 suffix is used for older brothers but then she says Tetsuya is her
younger brother "舎弟", there's something I'm misunderstanding here but I can't
pinpoint what. My best guess is that I'm probably misinterpreting 舎弟, which
could have another meaning that's not in a dictionary and doesn't literally
mean younger brother?

I would be grateful if someone could point out and explain where I'm going
wrong, thank you!
CC BY-SA 3.0
2017-06-16T13:40:50.427
48448
2017-06-17T04:21:35.997
2017-06-16T14:34:28.003
22582
22582
question
translation meaning syntax suffixes
What is "舎弟" supposed to mean in this context?
You seem to have missed several points.

  * Despite what jisho.org says, AFAIK 舎弟 is never used to refer to one's blood-related younger brother in modern Japanese. Here 舎弟 means someone's subordinate/disciple/pupil/follower/etc. It's mainly regarded as gangster jargon today, although it may be more like a casual [弟分](http://jisho.org/word/%E5%BC%9F%E5%88%86) in this context.
  * You seem to have failed to recognize the [`～にする` construction](https://japanese.stackexchange.com/a/32807/5010). (～を)舎弟にする means "to take on someone as a disciple".
  * Speaker A said "哲也兄!?", but that does not mean he _calls_ Tetsuya that way. Speaker A just repeated in a surprised tone what speaker B said.

My translation attempt (although not literal):

> B: あんたアレでしよ？ 哲也兄がこっちで舎弟にしたっていう  
>  B: So, you're the person Tetsuya-nii took on as a disciple here.  
>  B: Oh, I think I know you. Tetsuya-nii said he took on you as a disciple in
> this place.
>
> A: 哲也兄!?  
>  A: (You said) Tetsuya- _nii_!? (i.e., Wow, is Tetsuya your older brother?)
>
> A: っていうか俺そういう扱いなの!?  
>  A: Wait, is that the way I'm supposed to be treated!? (i.e., Do you mean
> someone said I am a disciple of Tetsuya?)
>
> A:
> 舎弟って、俺あのハゲに[兄貴分](http://jisho.org/word/%E5%85%84%E8%B2%B4%E5%88%86)らしい事何一つされてないんですけど!?  
>  A: What the heck is "disciple"? That bald bastard did nothing for me like a
> leader!
CC BY-SA 3.0
2017-06-16T14:42:13.700
48449
2017-06-16T15:54:23.390
2017-06-16T15:54:23.390
5010
5010
48448
answer
This sentence has some yakuza(Japanese Mafia) terms.

Yakuza treat their member as a family, so they use family words like 弟、兄, etc.

舎弟 is like a young brother for superior yakuza, 舎弟 call his superior yakuza 兄貴
or ～兄.
CC BY-SA 3.0
2017-06-16T15:18:51.453
48453
2017-06-16T15:18:51.453
7320
48448
answer
To interpret the OP's question, I perfectly agree with Yuuichi Tam's
understanding of the background of the given phrases.

Yuuichi Tam said:

> This sentence has some yakuza (Japanese Mafia) terms. Yakuza treat their
> member as a family, so they use family words like 弟、兄, etc. 舎弟 is like a
> young brother for superior yakuza, 舎弟 call his superior yakuza 兄貴 or ～兄.

In my understanding, 舎弟 is a younger brother-in-yakuza's-law just like to say
a younger brother-in-law who is not related by blood. Same as 舎弟, 兄 or 兄貴 is
an elder brother-in-yakuza's-law in the given phrases.

In my answer I am going to call 哲也兄 " _ **the boss Tetsuya**_ " instead of " _
**the elder brother-in-yakuza's-law Tetsuya**_ ", and am going call 舎弟 " _
**an underling**_ " instead of " _ **a younger brother-in-yakuza's law**_ ".

I'm going to tell another reason why 兄 in 哲也兄 does not imply a real brother of
the speaker B later on.

> あんたアレでしよ？哲也兄がこっちで舎弟にしたっていう

This phrase is an inversion of

> あんた（は）、哲也兄がこっちで舎弟にしたっていうアレでしょ？

こっちで implies こっちで勝手に, and こっちで literally means _**here**_ and acutually it
means _**from 哲也兄's side**_ , and 勝手に means _(to do something) without one's
permission_.  
アレ is literally _**that**_ , and in this phrase, it implies _**the man on the
topic**_.  
As a whole, the given sentence could be interpreted like:  
_Are you the man whom 哲也兄 **boss Tetsuya** made his 舎弟 **underling** by
himself without your permission?_

> 哲也兄！ ？ っていうか俺そういう扱いなの！？舎弟って、俺あのハゲに兄貴分らしい事何一つされてないんですけど！？

is roughly devided into two phrases:

>   1. 哲也兄！ ？ っていうか俺そういう扱いなの！？舎弟って、
>   2. 俺あのハゲに兄貴分らしい事何一つされてないんですけど！？
>

哲也兄！ _What!? Is Tetsuya my boss!?_  
っていうか is と言｛い｝うか _if I say in other words_. そういう points to 舎弟って（＝ 舎弟という） in
this phrase.

The phrase 1 is interpreted like:

> 哲也「兄」とは何ですか！ 哲也から俺を見ると、俺は哲也の舎弟という扱いなの！

_What!? Is Tetsuya my boss!? He takes me for his underling!_

> 俺あのハゲに兄貴分らしい事何一つされてないんですけど！？

ハゲ is a word to be used to insult a person who is bald. In this phrase Tetsuya
seems bald. The whole meaning of 2 is like:  
_I haven't been given anything that seems a favor from a boss from the bald
bastard, (so I wouldn't like to consider Tetsuya is my boss)_.

### The final answer:

I think Tetsuya is not the speaker B's or her older brother but is also her
boss or something like that, because the speaker A called Tetsuya ハゲ in her
presence. You can't insult a _**yakuza**_ in the presence of his real sister
even if the speaker A does not accept himself as an underling of Tetsuya.
CC BY-SA 3.0
2017-06-16T15:42:47.897
48455
2017-06-17T04:21:35.997
2020-06-17T08:18:27.500
-1
20624
48448
answer