mixed company

"Imagine my one attempt at rational conversation last night. Asking his views on female emigration . . . ." "Perhaps the bearings of the question would hardly suit mixed company."

1880, Charlotte M. Yonge, chapter 5, in Clever Woman of the Family

"Took 'er home all right, did yuh?" he leered, as if they two were in possession of a huge joke of the kind which may not be told in mixed company.

1908, B. M. Bower, chapter 3, in The Long Shadow

Travel is enlivened not only by the mixed company of French, Berbers, Arabs, and descendants of the Mediterranean-Corsairs who sit together indiscriminately, but also by itinerant vendors of macaroons, sweetmeats and the like, who, as long as they have a travel ticket, ply their wares unhindered by the [ticket] collectors.

1950 May, “A Tunisian Electric Railway”, in Railway Magazine, page 335

Only a Cancer female can describe in mixed company a night spent with a lover and a double-sided dildo without a sniff of shame or irony.

2004, Stella Starsky, Quinn Cox, Sextrology: The Astrology of Sex and the Sexes, page 189