The very rare merging of the commonly known douche and the largest known tool to man.

Signs that someone you know is a douchetool include:

They sporadically engage in random Tourette-like fist pumping.
They claim that they get many women when in fact they do not.
They proceed to change their facebook name to something that is different than their real name.
They are commonly known to flake on you if your not out on the lake because of their weird lake fetish.

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.

Someone who is a combination of both a douche and a tool. A great example would be a lacrosse player who walks around with a button down shirt and a tie over his shoulder.

when one won't suffice or a guy just deserves both, its easier to combine than waste your breath to say both.

someone that sucks at life.

Someone who acts like a douche and dresses like a tool.

wears the same sweater every day
thinks he is the shizzle
is a douche
is a tool
has a pyramid head