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A common trope across various anime and manga is the [snot bubble
trope](http://tvtropes.org/pmwiki/pmwiki.php/Main/SnotBubble). I've put an
example below:

[![](https://i.stack.imgur.com/kqEmO.jpg)](https://i.stack.imgur.com/kqEmO.jpg)

I can gather what it signifies from the [TV Tropes
description](http://tvtropes.org/pmwiki/pmwiki.php/Main/SnotBubble), but
what's the origin of this? Does anybody know where it was first used, or where
the inspiration came from?


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2015-05-27T17:58:33.477
21890
2017-07-14T10:40:14.633
2017-07-14T10:40:14.633
10654
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question
tropes
What is the origin of the bubble during sleep trope?


The origin is, perhaps surprisingly, real life! This does occur among
[children in Japan](https://www.flickr.com/photos/altus/1515466596) and [in
other countries as well](http://jemblankz-
monstervikings.blogspot.jp/2011/06/funny-snot-bubble.html).

![enter image description here](https://i.stack.imgur.com/dvp2q.jpg)

![enter image description here](https://i.stack.imgur.com/zqk4c.jpg)


CC BY-SA 3.0
2015-06-01T22:35:42.530
22042
2015-06-01T22:35:42.530
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answer