So, what is "comilfo"? The word "comilfo" comes to us from the French language, where "comme il faut" means "as it should be" or "as it ought to be". Essentially, comilfo is compliance with accepted norms and rules of behavior. If someone is dressed according to the dress code at a party or knows how to maintain a conversation in the right tone, it is said that this is comilfo.
Now imagine a situation: you are at an important meeting, and everyone is talking about art, and suddenly someone starts discussing gossip about celebrities. This is precisely an example of when it is "not comilfo". That is, failing to adhere to etiquette or violating general norms is already not comilfo. So, if someone asks what comilfo is, you can now explain: it is simply what complies with the rules of good behavior.