Someone who demands silence when they are high. As a librarian makes people in a library be quiet, a hibrarian does the same thing, only with his/her high counterparts.
*WATCHING ADVENTURE TIME*
Friend 1: Oh shit, you see that, he---
Hibrarian: Hey, shut the fuck up!
Friend 1: The fuck was that? I object to your language!
Friend 2: Ah, don't worry, he's just a hibrarian...
Hibrarian: Didn't I say to shut the fuck up?!?!
A Jewish lesbian. The first syllable is derived from the word "Hebrew", and the second syllable from the word "lesbian".
Abby: So, what are you doing over the holidays, Ashton?
Ashton: Oh, my girlfriend and are are going to her parent's house for Hannukah.
Abby: (Thinking)Oh my God, she's such a Hebrian!