1. American bonehead.
2. Pull a Homer: to succeed despite idiocy.

I couldn’t care less (but one must keep up appearances, right?)

Homer is the unfortunate mascot of the Home Depot, Atlanta's projection of how their own workers are expected to come across: Dumpy, overweight, short, cartoonish, caricaturized, and unwilling to make eye contact with you.

Homer Simpson, moronic head of the animated Simpson's family. Voted greatest American of all time (beating out presidents like Abraham Lincoln) in a UK poll.

Someone who shows blind loyalty to a team or organization, typically ignoring any shortcomings or faults they have.

A blind Greek poet and storyteller.

A sports broadcaster who very obviously shows favoritism towards the team they represent.