1. A big burly person
2. Don, leader
3. Bigshot, braggart
Usage
1. Yani Mike ni Okonkwo = Mike is really huge
2. Mbugua ndio Okonkwo wa ma mat = Mbugua is the leader of the matatu fraternity
3. Una ji fanya Okonkwo? = Why are you pretending to be a bigshot?