Daft Dingus - A human who does something so stupid it makes you want to pu

A human who does something so stupid it makes you want to punch them in the face.

He jumped into a pool full of glitter and then cried. Daft Dingus.

My brother tried to fight a robot and lost. Daft Dingus.

My dad tried to wear a hat backwards and called it a fashion statement. Daft Dingus.