comme il faut

Borrowed from French comme il faut (“as it should be”).

• (General American) IPA^(key): /ˌkʌmilˈfoʊ/
• (Received Pronunciation) IPA^(key): /ˌkʌmiːlˈfəʊ/

comme il faut (comparative more comme il faut, superlative most comme il faut)

1. Proper; in keeping with etiquette or social standards.
   • 2007: Talking during performances is perfectly comme il faut in Wharton – why else go to a show if not to talk to one’s friends? – so while Miss Shaw, up to her bosom in dirt, went on about existence, I asked my female companion for advice. — Deborah Friedell, ‘Short Cuts’, London Review of Books 29:5