Jagaboon
An idiot, a putz, someone who has no understanding of that they are in fact a mental midget. A jagaboon is someone who has completely skewed view of their own intelligence and authenticity.
That guy Jake is such a jagaboon. He always thinks he is right and is unwilling to listen to any outside opinions.
Wow, what a jagaboon, that guy is so stubborn he doesn't even recognize when he's overstepping boundaries.
Wow, what a jagaboon, that guy is so stubborn he doesn't even recognize when he's overstepping boundaries.