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> 今じーちゃんとこなんでって…  
>  "Right now I'm at grandpa's" [(source
> context)](https://i.stack.imgur.com/vPFXo.png)

In this case the speaker is on the phone so his speech is casual and
fragmented.

I already have an idea of what the sentence means, what I am hoping to
understand is:

  * What なんでって is a contraction of?
  * And what it is doing in this sentence grammatically? What nuance does it add?

I know that とこ is a contraction of のところ but what is なんでって, is it なので? I know
って is often と or sometimes という but that doesn't seem to make sense in this
context, at least to me as a beginner.
CC BY-SA 4.0
2018-07-30T07:13:55.253
60544
2021-11-28T00:57:09.263
2021-11-28T00:57:09.263
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question
grammar colloquial-language contractions
What is なんでって a contraction of in this sentence?
The actual phone conversation would have gone like this:

Guy: 「あ、おかあさん？オレ。今じーちゃんのとこ。」

Mom: 「 **なんで** （じーちゃんのとこにいるの）？」

Guy: 「 **なんでって** ・・ 別{べつ}にィ～～～」

> What なんでって is a contraction of?

It is of 「なんで **と** 」. This 「って」 is the informal version of the quotative
particle 「と」.

「なんでと」 in this context means 「なんでと言{い}われても」or 「なんでと聞{き}かれても」, which would
_roughly_ translate to "Why? Because...".

> And what it is doing in this sentence grammatically? What nuance does it
> add?

「と/って」 here introduces the speaker's intention of replying to the question
asked by the other person. The question here is of course "Why are you at your
grandpa's place?" asked by Mom to which the son replies 「別にィ～～」 ("No reason.")
CC BY-SA 4.0
2018-07-30T07:53:06.283
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2018-07-30T07:53:06.283
60544
answer