What do hir and ze mean?

From Barbelith

"Hir" = when used as a noun: Him or Her. As a possessive adjective: His or Her.

"Ze" = He or She.

There's no way to tell the actual gender of any given poster on Barbelith, so some folks prefer to use gender neutral pronouns. Other folks believe this is a symptom of Political Correctness Gone Mad.

There's been quite a bit of discussion (http://www.barbelith.com/underground/topic.php?id=9710) on the site about it already.