Sago
This post reminds me of a holiday I endured with my Mother and MIL it was when Clinton was accused of having an affair with Monica Lewinsky.
The newspaper’s kept referring to a BJ, MIL asked what it meant, my mother piped up that she didn’t know either.
I had the joy of explaining……” do you think people in England do it” asked MIL “Surely not said my mother..
I kept tight lipped.
No pun intended. ?
Sago when I was about 27 I found myself explaining to my mother why one of her contemporaries had sniggered when referring to the fact that she, mother's friend and that lady's husband lived at no. 69!
My mother had been genuinely unaware of what 69 could refer to.
Oral sex has been in fashion at various times in human history, then either not practised, or just not talked about in the interceding puritanical times that seem unfailingly to come along after a particularly free- and-easy sexual era.
I believe that until 1969 when the Divorce Act (Scotland) was revised Scots Law repressively called both fellatio and cunilingus, and a whole lot of other erotic pastimes, "lewd practices" that could constitue grounds for divorce if you could prove that your spouse had forced you to participate in them. They are probably still legal offences in certain American states!

