A person who has a one-track mind, one that spins in circles, generally on a single, annoying topic without ever really making a valid or substantial point.
Our President is a complete hamsterhead when it comes to his fixation on insulting the appearance or mannerisms of members of the media who are critical of his ineptitude.
God: We need to make something great.
Angel: How about a shark that can beat the shit out of people without biting them, it’s called a hammerhead shark God: That defeats the purpose of a shark but ok.