Glabrous means hairless. What’s the insult here?

I attend a magic council with a commitment to being open and affirming. Our council has wizards, warlocks, magi, witches, seers, necromancers, and even an abjurer. If you mess with a broom you best be ready for the staff from behind. Equal rites for magic users!

(Except sorcerers, they’re a bit scarily focused on purity of blood lines for my taste)