French slang

'''' () is a type of argot in the French language, featuring inversion of syllables in a word, and is common in slang and youth language. It rests on a long French tradition of transposing syllables of individual words to create slang words. The word itself is an example of verlan (making it an autological word). It is derived from inverting the sounds of the syllables in l'envers'' (, "the inverse", frequently used in the sense of "back-to-front"). The first documented use of verlan dates back to the 19th century, among robbers.

' or ' () is Parisian and Lyonnaise butchers' (French ) slang, similar to Pig Latin and Verlan. It originated in the mid-19th century and was in common use until the 1950s.

manner of responding to challenges that requires one to have the ability to think fast, to adapt, and to improvise when getting a job done

Javanais (, lit. 'Javanese (language)') is a type of French slang where the extra syllable is infixed inside a word after every consonant that is followed by a vowel, in order to render it incomprehensible. Some common examples are gros (, "fat") which becomes gravos (); bonjour (, "hello"'), which becomes bavonjavour (); and pénible (, "annoying"), becomes pavénaviblave (). Paris () becomes Pavaravis ().