A haircut that is shaved underneath, and long on top, like bassist Jason Newsted's during his early Metallica years. It became re-popularized in the early-to-mid 2000-teens. Hipsters and worship pastors love it.
Dude #1: I just got a new haircut
Dude #2: What kind?
Dude #1: The Newsted
Dude #2: Awesome!