Deafening undead

From an old ranger log (Tifla): <458hp 384m 447mv 15374tnl (wilderness - none - fighting - 10 AM)> You dart in quickly past Satebos's defenses with the speed of a snake! Your serpent strike mauls Satebos. You make another quick lash towards Satebos's ear, creating a deafening cracking sound! Satebos is Deaf! Your deafening lash injures Satebos. Satebos has some small but disgusting cuts. Caverndweller's deafening howl and animist spirit howl also work similarly.