Faux pas
A faux pas (French: false step; pronounced foh-PAH; foh-PAH or foh-PAHZ for the plural) is a violation of accepted, although unwritten, social rules.
Faux pas are very culture-specific; what is considered good manners in one culture can be considered a horrible faux pas in another. For example, in English-speaking Western countries it is usually considered good manners to bring a bottle of wine when coming to someone's house for dinner. In France, however, this is considered insulting as it implies that the dinner hosts are unable to provide their own good wine.
Using a bidet as a toilet is a faux pas which is common with first-time visitors to Europe.
