Big chief
There was this big tribal chief who was suffering from constipation, and therefore sent his messenger to the urban doctor for getting prescription.
The messenger went to the doc and said, “Doc, doc…. Big chief, no shit! Big chief, no shit!” The doctor handed him one month’s prescription. But the chief consumed all the pills in a day.
When the messenger showed up at the doctor’s office again, the doctor asked, “What’s the problem now?”
The messenger said, “Big shit, no chief! Bigggg shit, no chief!”