From ratemymullet.com:

What is a mullet?

What a question! Almost everyone knows what a mullet is by now, its popularity has risen greatly in recent times - not the popularity of the instance of the mullet (which has remained at a constant plateau for several millennia), but rather the youth-backlash towards it. Leading scienticians say that anti-mullet sentiments have risen a staggering 437% in the past 5 years alone.

I'm sensing a Mullet Monday theme...