[fiforpg]

Looks like this kind of soft / euphemistic language dates back to even earlier than that. Here is a YT clip of George Carlin railing against it in his 1990 special:

https://www.youtube.com/watch?v=o25I2fzFGoY

[kadoban]

It dates back to one generation after language was invented. And bitching about it dates to one week later.