barmy
adjective /ˈbɑːmi/
/ˈbɑːrmi/
(British English, informal)- slightly crazy
- The music is driving me barmy.
- The woman upstairs seemed to have gone completely barmy.
Word Originlate 15th cent. (in the sense‘frothy’): from ‘barm’ ‘the froth on fermenting malt liquor’ + -y.