What is a Man Bun?

​This week, Groupon's promo [re]stirred the "man bun" craze.  So for those who aren't exactly sure what a man bun is, let's start with a definition.  A bun is is a type of hairstyle wherein the hair is pulled back from the face, twisted or plaited, and wrapped in a circular coil around itself, typically on the back of the head or neck... according to Wikipedia.  A man bun, therefore, is a man who sports such hair do.  

Here are some historical and celebrity figures who have sported man buns:
1. Terracotta Worriors
2. Samuri Worriors
3. Buddah
4. Chris Hemsworth (pic)
5. Leonardo DiCaprio
6. Brand Pitt
7. Wannabe Hipsters (aka interns) at ManPossible 
etc. etc.
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