Can anyone please let me know what this is supposed to mean? I heard that it’s
a sound effect or sfx like Japanese symbol, but I’m not sure. Thank you!
![enter image description here](https://i.stack.imgur.com/5isSM.jpg)
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2020-05-08T22:51:19.667
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meaning katakana anime symbols japanese-to-english
What does this symbol mean?
It's three distorted small-tsu's in katakana (`ッッッ`), which is like `!!!`.

Related:

  * [What does the little っ (tsu) signify when at the end of a word?](https://japanese.stackexchange.com/q/1457/5010)
  * [How would I indicate yelling when writing Japanese?](https://japanese.stackexchange.com/q/69948/5010)
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2020-05-09T00:18:02.483
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It's "ブワアッッッ"

> I heard that it’s a sound effect or sfx like Japanese symbol, but I’m not
> sure.

Yes, ブワッ is a sound effect for something spreading, exploding, overflowing,
etc.  
Additional ア and ッ just strengthen it.  
In this case, it represents his blood spouting out.

ブワッ is a very common sound effect and used in various way.  
Translation list below would help you.  
<http://thejadednetwork.com/sfx/browse/buwa/>
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2020-05-09T03:55:17.443
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Just to elaborate a little more on what's already been said, the small tsu (ツ
or つ) extend the sound of the preceding syllable or add emphasis. So in this
case it's basically turning the buwaa (ブワア) into something more like
buwaaaaaaaaa! (ブワアッッッ).
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