Daisuke Miura didn't really take to being called "Hama no Bancho" initially.
The phrase roughly translates into "Boss of Yokohama," which is all well and good except that bancho is usually used for the leader of a street gang or similar band of delinquents.
The moniker was attached to Miura over 20 years ago, mostly because of his regent hairstyle, which admittedly does make him look the part.