Here are slang terms I have learned:
1. Choette! (Cool!)
2. C’est dang ca. (That’s dumb.)
3. C’est chien. (That sucks.)
4. Merde (Good luck on your exam. P.S. If you say thanks, then you loose your good luck. So, you are not supposed to give a reply at all.)
5. Mec/gar (a guy)
6. Truc (thing)
7. Troc (To sell/trade used items)
*Example of #6 and #7 together would be “Truc a Troc” (Used items to buy and sell, such as Buffalo Exchange.)