User blog comment:Zolnir/RWBY Episode 5 Reviews & Assumptions/@comment-11188061-20130816161239/@comment-10390252-20130816183737

I think they look sort of like land sloths (an extinct branch of the genus). It would have to be something vaguely menacing though and a synophone to a real name or saying...

"Slothtar"? (pronounced so it sounds like 'Slaughter')