je ne sais quoi
French expression literally meaning "I know not what"; je I
, ne...pas not , sais know , quoi what . In Oxford
English Dictonary since 1656. It is a way to express a quality that is
hard to describe; a certain something.
Example: "dem bones is really stylish, he has a certain je ne sais
quoi."
This is an entry in the mini series about French idioms in the English
language. | 
