Much of modern French slang comes from the influence of North African Arabic spoken in Algeria, Tunisia and Morocco. Some of this slang is even used among families and friends outside the big French cities, thanks to the spread of hip-hop culture.
Disclaimer: these Arabic words are not used in their literal meaning, but rather as a French “interpretation."
1. Wesh
It comes from slang Algerian “esh” meaning “what’s going on." It's used as the equivalent of “wadup?” or “yo."
2. Kiffer
From the word “kif” in Arabic, literarily meaning “to enjoy." This is the same as “digging” something in English slang.
3. Le kif
This is almost the same as "kiffer," only that it’s a noun. It can be used similarly to “dope" in English slang.
4. Kifkif
This word is used to say “same same."
5. Chouiya
From “chweya” meaning “a little bit." This word is used by almost everyone in France.
6. Fissa
Means “quick” or “hurry-up."
7. Flouze
This means “money” but is used like “dough” in English slang.
8. Hchouma
Comes from “hechma” meaning “embarrassing." Cool kids generally use it as “oh la hchouma!”
9. Seum
It means “venom” in Arabic and is generally used in French to describe someone who’s really upset. As in “so annoyed."
10. Walou
Walou is a typical Algerian word meaning “nothing”. The famous band Outlandish named one of their songs "walou."
11. Zaama
This is a North African expression meaning “asif." Middle Eastern countries would use “a’al ya3ni."
12. Tataouine
Tataouine is a Tunisian town where one of Star Wars movies was filmed. French people use this word to refer to a place that’s in the middle of nowhere.
13. Bled
Means “country” or “city.”
14. Sahbi
Literarily means “my friend” but more like “my homie” in slang.
15. Khouya
This literally means “my brother” or “bro”.
16. Miskin/Miskina
Miskin means “poor” and is used to describe someone who’s the epitome of misery.
17. Garo
This is another specifically Algerian word that means cigarette.
18. Halla
Means “chaos” in North African Arabic. “La hala” is the way to say it.
19. Rassra
Literarily means anxiety. French people use it to describe a place, a person or anything that is creepy.
20. Chouf
It means “look” in Arabic and it is quite widespread in French slang vocabulary.