dillwand
A derogatory term used by Dungeons and Dragons enthusiasts to refer to a particularly annoying player, usually one who is playing as a wizard. Not only does "dillwand" refer in a direct sense to a wizard's wand, it insinuates that the person in question is a phallus (i.e., calling someone a penis.)
"You can't cast Magic Missile, dillwand, you've been Silenced."