I assume it's some alternative for 'nevermind'?

> ・・・ンなこと  
>  いーからさっさと  
>  帰ろーぜっ

[![](https://i.stack.imgur.com/SH5Q8.png)](https://i.stack.imgur.com/SH5Q8.png)
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2016-12-03T01:45:52.583
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2021-11-09T12:53:37.863
2016-12-03T03:26:30.467
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question
translation phrases
What would someone saying ... ンなこと mean?
んなこと is just an abbreviated form of そんなこと
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2016-12-03T02:38:57.683
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2016-12-03T02:38:57.683
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…ンなこと is the _same_ as そんなこと. そんなこと means "about that".  
In English, 気にする is "worry". So the translation is:

> Don't worry about that.
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2016-12-03T02:42:36.063
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2021-11-09T12:53:37.863
2021-11-09T12:53:37.863
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answer