Meaning of the word batty in English

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

batty

US /ˈbæt̬.i/
UK /ˈbæt.i/

Adjective

crazy; insane

Example:
She's gone completely batty since she started living alone.
Don't mind him, he's a bit batty sometimes.