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Dad is being told off for eating too fast and not leaving enough food for
grandma and grandad. He replies:

> 「おう、これでも遠慮してるんだぞ。じいさんもばあさんも、どんどん勝つ手に食べりゃいいんだ。」  
>  Even though it looks (bad) I'm holding back. Both grandma and grandad
> rapidly ????

I assume 食べりゃ is a contraction of 食べれば. "It's okay if grandma and grandad eat
...".

I can't understand the 勝つ手に part. I guess from the に that 勝つ手に is supposed to
be an adverb but I can't make anything make sense that fits the context.
CC BY-SA 3.0
2016-06-01T20:32:14.793
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2016-06-01T20:41:40.910
7944
question
set-phrases
Meaning of 勝つ手に
I think it's supposed to be
[勝手{かって}](http://dictionary.goo.ne.jp/jn/42832/meaning/m0u/) with a little つ.
CC BY-SA 3.0
2016-06-01T20:41:40.910
34561
2016-06-01T20:41:40.910
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answer