^ Buhari Called "Garri" In Kano, Osinbajo "Groundnut" & Saraki "Sugar" , as Nigerians feel pains of increasing hard times
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He said: “I was sitting with a guy who sells tea when an elderly man came and said ‘Give me ‘Buhari’s mixture’. Without saying anything more, the man was given some tea and small bread for a sum of N40.
I was baffled, so I asked the seller what the man meant by ‘Buhari’s mixture’. He explained that it means tea without milk plus a small loaf of bread.

Don't forget about the story of the man who named his dog Buhari.
It seems it's a naming ceremony.