1. A long beard that reaches to the owner’s chest; a beard that essentially hides the neck.
2. The wearer of a long beard.
A term used to describe the long facial hair of some eccentric engineers and computer scientists -- especially on university campuses in the 70s -- who are so buried in their scientific work that they simply neglect to shave for months or even years.
1. Dexter looks like a hermit with his neck beard.
2. Look at Wayne, he’s hanging out with the neck beards now.