1. I got fired.
2. I got the boot.
3. I got the ax.
4. I got sacked./I got the sack.
5. They kicked me out.
6. My boss showed me the door yesterday.
7. I was canceled.
8. I was laid off.
9. The boss told me that I don't have to come in tomorrow, or any other day.
10. My boss told me to find a "better" job.