"Smelly Hair Syndrome."

What does syndromically smelly hair smell like?

Some describe it as "... stinks like a diaper." Others have compared the smell to "sour milk, wet dog, moldy hay, potatoes, an old shoe or dirty socks, a jacket that's never been to the dry cleaner, and an oily smell mixed with vomit." The most unusual description we've heard was "... sort of a cross between Dorito's Bold BBQ chips and cinnamon (and not a sweet smell, actually kinda foul) and maybe a hint of cheese." And, finally, one unfortunate reader told us that "my hair is so smelly that sometimes flies buzz around my head."