Comes from the movie "Treasure of the
Sierra Madre", 1948, starring Humphrey Bogart. Bogie and two other Norteamericanos are looking for gold in Mexico.
Banditos come to the campsite and identify themselves as
Federales.
"If you guys are the Federales, then where are your badges?"
"¿Badges? ¡We don't need no stinking badges!"
