If you spend any time scrolling French TikTok, watching French YouTubers, or hanging out near a high school or university café in Paris, Marseille, or Lyon, you’ll quickly notice that the French you learned in class isn’t exactly what young people are speaking today. French Gen Z slang is a fast-evolving mix of verlan, Arabic and Romani influences, texting shortcuts, and words born from rap and street culture. Linguists and youth media outlets note how multicultural suburbs and social media accelerate the spread of these expressions nationwide. Understanding them is key if you want to truly grasp how French teenagers and young adults communicate.
Here’s your essential guide to the Gen Z slang words you’ll actually hear when you visit France.
Popular Slang Terms and Expressions in France
1. Reuf
The word reuf is a staple among French youth, and literally comes from the verlan (a type of French slang in which syllables are inverted) of frère, meaning brother. It’s used to refer to a close friend or buddy, the kind of person you trust and hang out with regularly. Think of it as the French equivalent of “bro” or “dude.” You might hear someone say, “Yo reuf, prêt pour le match ce soir ?” (“Yo bro, ready for the match tonight?”) or “Je peux toujours compter sur mon reuf” (“I can always count on my bro”).
2. Cassos
Cassos is short for cas social, literally meaning “social case,” and is used to describe someone who seems lost in life or a bit of a loser. It can be joking among friends or slightly harsh if used seriously. In English, it would translate roughly to “mess” or “trainwreck.” For instance, “T’as vu ce type ? Total cassos” (“Did you see that guy? Total loser”) or “Arrête de te comporter comme un cassos” (“Stop acting like a mess”). The word often carries a playful, sarcastic tone, but context matters—it’s not something you’d say to someone’s face lightly.
3. Mon gâté
In southern France, especially around Marseille, mon gâté is a popular slang term meaning “my guy” or “my dude.” Literally, it translates to “my spoiled one,” but it’s an affectionate way of addressing a friend. You might hear, “Yo mon gâté, ça va ?” (“Yo my dude, what’s up?”) or “Merci mon gâté pour le coup de main !” (“Thanks for the help, my guy!”).
4. Vago
Vago is a term used to describe a car or a ride. Its origins trace back to the Romani language and were reinforced through French rap and urban culture. A young person might say, “Check ma vago, elle est neuve !” (“Check out my ride, it’s brand new!”) or “On se retrouve devant ta vago ?” (“Meet in front of your car?”).

5. Wesh
One of the most versatile French slang words, wesh can mean “hey,” “yo,” or even express surprise, annoyance, or disbelief. It originates from North African Arabic and was popularized by rap culture. It’s a go-to greeting or filler word: “Wesh, ça va ou quoi ?” (“Yo, how’s it going?”) or “Wesh, t’as vu ça ?” (“Yo, did you see that?”).
6. Seum
If someone is annoyed, frustrated, or salty, they might say they have seum. The term comes from the Arabic soum, meaning bitterness. It expresses that feeling of disappointment, especially after losing or missing out, and can be used similarly to the English term “salty.” Examples include: “J’ai perdu le match, gros seum” (“I lost the game, I’m so salty”) or “Il a pris ma place, j’ai le seum” (“He took my spot, I’m mad”).
7. Miskine
Miskine, from Arabic miskīn, is used to refer to someone unlucky. Depending on context, it can be genuinely sympathetic or lightly ironic. For example: “Miskine, il a raté son examen” (“Poor guy, he failed his exam”) or “Trop miskine la fille, elle pleure pour rien” (“She’s crying for nothing, poor thing”).
8. Pépite
Literally meaning “nugget,” pépite is slang for a hidden gem, or something particularly cool or valuable. It’s common in conversations about movies, music, restaurants, or any enjoyable experience. You might hear, “Ce film est une vraie pépite” (“This movie is a real gem”) or “Ce resto est une pépite cachée” (“This restaurant is a hidden gem”).
9. Incr
Incr is a shorthand for incroyable (incredible) and is typical in online chats, texting, and social media. It’s the French equivalent of saying “epic” or “insane” in English. For example, “Cette vidéo est incr !” (“This video is insane!”) or “La soirée était incr” (“The party was epic”).
10. Dinguerie
Derived from dingue (crazy), dinguerie describes something wild, impressive, or extraordinary. It’s mostly positive and conveys excitement. For example: “Ce concert, c’était une dinguerie” (“That concert was insane”) or “Ce plat est une dinguerie” (“This dish is crazy good”).
11. Carré
In slang, carré means solid, reliable, or “on point,” drawing from the literal shape of a square. You might hear: “T’es carré, merci pour ton aide” (“You’re solid, thanks for your help”) or “Tout est carré, on peut commencer” (“Everything’s set, we can start”).

12. En despi
Short for “desperate,” en despi is used jokingly or casually to describe someone acting a bit hopeless or eager, often online. For instance: “Il m’a appelé en despi pour sortir ce soir” (“He hit me up desperate to hang out”) or “J’ai posté en despi pour avoir des réponses” (“I posted kinda desperate for answers”).
13. Chockbar
Chockbar comes from the English word “shock” and is used in French urban slang to describe something mind-blowing, crazy, or shocking. You might hear: “Ce clip est chockbar !” (“This music video is wild!”) or “La news d’hier était chockbar” (“Yesterday’s news was crazy”). It’s a dramatic, expressive term, popular among teenagers.
14. Pain/Boulangerie
French Gen Z uses pain and boulangerie metaphorically for romantic interests: one pain is a crush, while the boulangerie is the group of people you like. Examples include: “Mon pain m’a envoyé un message” (“My crush texted me”) or “J’ai rencontré la boulangerie hier soir” (“I met the whole roster last night”).
15. Bail
A very versatile slang term, bail refers to a situation, plan, or deal. It may come from the French legal term for a lease. You might hear: “On a un bail pour ce soir, tu viens ?” (“We’ve got a plan tonight, you coming?”) or “C’est quoi le bail avec lui ?” (“What’s the deal with him?”).
16. Déter
Déter, short for déterminé, describes someone highly motivated, focused, or ready to act. It’s often used in school, sports, or work contexts. For instance: “Je suis trop déter pour réussir cet examen” (“I’m locked in to pass this exam”) or “Déter à gagner le match, go !” (“Fired up to win, let’s go!”).
Gen Z Slang in France
French Gen Z slang evolves quickly, propelled by social media, rap, and multicultural urban life. Words rise and fall with memes, music, and trends, but learning even a few of these expressions will make you sound less like a textbook speaker and more like someone who actually hangs out in France. Next time a friend says, “Wesh reuf, t’es déter pour le bail ?” — you’ll know exactly what they mean.
Valentine Marchou is a French journalist with a keen eye for culture, lifestyle, and society. After honing her skills in several French newsrooms, she now aims to tell stories that bridge French and English-speaking worlds through art, food, and everyday life.





