Meaning of the word "off your rocker" in English

What does "off your rocker" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

off your rocker

US /ɔf jʊər ˈrɑkər/
UK /ɒf jɔː ˈrɒkər/
"off your rocker" picture

Idiom

crazy or insane

Example:
You must be off your rocker to think that plan will work.
My grandmother is a bit off her rocker sometimes, but we love her.