ELI5: Explain Like I'm 5

Toothbrush moustache

A toothbrush moustache is a type of moustache that looks like a toothbrush that people used to clean their teeth. It became famous because a man named Adolf Hitler had this type of moustache. He was a very bad man who caused a lot of trouble in the world. Because of this, many people think that the toothbrush moustache is a bad thing and should not be worn by anyone. Nowadays, most people don't wear this type of moustache because of its association with Hitler.
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