"I take immense pleasure in rolling that profanity on my tongue as I will, in later years, roll other things (dover akher—treyfs and indecencies) on that same tongue." (source)

"The development of dover akher/illustrates how a bland, almost meaningless euphemism can end up needing a euphemism of its own: call a man a khazer and he might argue, call him a dover akher and he’ll sue." (source)