Deadknob 

Noun: Word used to describe a person having ‘No goals’.

“Uh, yeah.... I mean.... she nice, but she’s a total Deadknob.....!”

Deadknob by Helena W June 3, 2018

Deadknock

A kid-friendly insult to that you would use when you can’t curse. It basically means that you’re stupid.

Holden thought that Ivan’s way of holding the pencil was dumb, so he called him a Deadknock.

Deadknock by WeUsedToPlayHouse January 10, 2023