Madison: "Oh my god i just love that new song Fireflies by Owl City, do you know them?!"
Isabel: "Wow Madison, I've known about them so much longer than when they came on the radio. That song isn't new. You're just maimestreaming."
A term used to describe people who conform to the usual or expected standards and patterns of behavior, often seen as lacking creativity or originality. It's often used in a negative or dismissive way.