If it's in-character, then it's acceptable. I don't agree with the philosophies of the dwarvesbane guild, and had a wonderful RP argument with a member of that guild yesterday, but if it's role-played, it's part of the game.
If they were offensive out of character, report it to a GM.
Or we can take Kergen's suggestions, groffles at ten paces

My little pet is aching to bite someone
