The more syllables a euphemism has, the further divorced from reality it is
Euphemisms are unpleasant truths wearing diplomatic cologne.
Euphemisms are not, as many young people think, useless verbiage for that which can and should be said bluntly; they are like secret agents on a delicate mission, they must airily pass by a stinking mess with barely so much as a nod of the head
Some kids get called 'bundles of joy' or 'slices of heaven' or 'dreams come true.' We got 'the fifty-fourth generation of DNA experiments.' Doesn't have the same warm and fuzzy feel. But maybe I'm oversensitive.
As societies grow decadent, the language grows decadent, too. Words are used to disguise, not to illuminate, action: you liberate a city by destroying it. Words are to confuse, so that at election time people will solemnly vote against their own interests.
Classical dance forms are filthier than bidets. There should be a euphemism for them. The man twirls his partner around to catch applause like an umbrella during migration season.