Earlier this year a post on the messaging app Yik Yak sparked debate.
How do "towel hats" work?
Tumblr users were divided, some echoing the Yik Yak user's confusion.
Some preferring to judge the clueless young man.
On Imgur, a divide was created between the long- and short-haired.
In fact, how those in the know even learnt how to make a "towel hat" seemed pretty unclear.
Yet the question remains....