Chamba is a Mexicanism for job. To be real Mexican, you'd use pinche chamba instead of dichosa chamba which means crumby job or stinking job(puñatero trabajo en español yo creo) . I'm not expert on this so I may be wrong, but I use it for comic effect and sometimes it works. David would know, Crocalito would surely know. He's (as we here say) the real deal. Isn't pinche a great word?

That picture is of a street corner in lower Manhattan. I recently decided to join the 21st century and bought a digital camera. How modern of me. (auto-pelota)