Tag Confusion: rat_tail (and rattail)

What should be done with rat_tail? No wiki, and it's being used to tag both its literal reading and a hairstyle. Then there's rattail, but it's only on a couple deleted posts.

Since the hairstyle has no space (rattail), we can just use the correct name, rat_tail for the tail, rattail for the hairstyle.

People don't seem to confuse the similar tags, cattail / cat_tail.

edit: There is also a fish called rattail