An individual who's personality is the perfect combination a Tool and a Douche Bag.

Another explanation is a moron who thinks that they are god's gift to the world.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

a loser jerk off that thinks they are cooler than they actually are. they think they are the focus of everyone's attention or are better than everyone when in fact they are not. they try too hard, get smuts with diseases, have diseases, and are used like tools

An individual whose ineptitude, idiocy, and lack of personal hygiene sets them far above and beyond a mere "tool"...only a full "bag of tools" is sufficient to describe their personal defects.

A person who is more than a plain tool, or dick, but is equivalent to a bag of tools, or a sack full of dicks.

A person of utter uselessness.

Completely and devestatingly devoid of purpose.