A beard that someone always has. It is different from a beard that is grown for a change of pace, special occasion, or out of lazily deciding not to shave. Despite not shaving, men who have these beards must maintain them to keep them at an appropriate length.
Person 1: Matt's beard is impressive. Did he just grow it?
Person 2: No, it's a permabeard.
The area of a man's facial magnificence which has not been touched by a razor for 2 years or more.
Wow, that guy's beard is so epic, he has permabeard all over his face!