[Poohbah]

Howard Stern often has Daniel Carver on his show. The guy is something like "The Grand Poohbah" of the KKK.

He'd better NOT be calling himself exactly that, or he's gonna find out that this here Universe ain't big enough fer the two of us.

[AmericanInTokyo]

...hopefully we can put all the Idaho/Alabama skin-heads and nazis and Aryan Nations' volk into one big pit in the ground, along with the Trotskyites, the Socialist Vanguards and the PETA-ites, and have them get into one massive pummeling fest until none of their respective species are left standing on this good, green earth......

[Clemenza]

He'd better NOT be calling himself exactly that, or he's gonna find out that this here Universe ain't big enough fer the two of us.

There was also a rapper a few years back, who called himself Grand Poohbah. He was with a group called Brand Nubian. I don't like most rap, but I must admit they were pretty good.