A word used to tell someone that they've
already told you this; a
reference to how Jimi Hendrix would put acid in his headband before playing. Yes, we know.
Everyone knows. So stop saying it again.
Person 1--"
You know, I really hate when I get a hair
stuck up under my eye.
One time, I got a hair stuck under my eye..."
Person 2--"Headband..."
Person 1--"Oh. Sorry."