Off your rockers 

When you are so off your rocker you're off both your rockers.

*Addressing someone sleeping Coltrane style* "You're not off your rocker. You're off your rockerS!"

Off your rockers by Hey,Okay September 16, 2020

off your rocker 

Crazy, out of control, nuts.

In addition to being a kind of chair, a 'rocker' is a device that controls the movement of a piece of machinery. When a machine is off its rocker, it no longer works correctly.

1) You can't walk down the street in your underwear! Are you off your rocker?

2) I'm afraid Aunt Betty is really off her rocker these days.

off your rocker by VAKI5 May 14, 2005

Off your rocker 

It means acting nuts.
To be a crazy person.

Matt: Oh, I can't believe you just jumped off that 80 feet building! You must be off your rocker!

Off your rocker by LesleyDianna April 30, 2012