What is the definition of Blind Bartimaeus Fillmore?

"Blind Bartimaeus Fillmore" is like a comedian who's so fixated on his own sight that he can't see the whole show, hence the name "Blind Bartimaeus." Imagine this: A guy named Fillmore, who's so convinced he's the only one who can dance the blindfolded, throws a party where the music is so good, even his blind friends think he's the only one who can follow the rhythm. But here's the twisty part: He's so blind he can't even see the punch line of his own joke. Edgy example: "In my attempt to be the 'Blind Bartimaeus Fillmore' of comedy, I inadvertently turned my setlist into a medley of existential dread."