French I hear on the streets vs. French learned formally

Street French vs. Formal French meaning:
1. Ski deez? 1. What is he saying?
2. Shay pah. 2. I dunno.
3. T’es fou toi! 3. You are crazy!
4. Tu rigole quoi? 4. Are you joking or what?

5. Y’a rien a voir. 5. That has nothing to do with it.