looney
UK[ˈluːni]US[ˈluːni]
adj
crazy or silly
n
a crazy or silly person
Etymology
the word 'looney' is an informal term meaning crazy or foolish, directly derived from the surname 'looney'. its widespread popularization is almost entirely attributable to its association with the fictional character 'looney tunes', a series of animated cartoons launched in 1930, which featured wildly erratic and zany characters. the name of the cartoon series itself was a pun on 'loony', an existing slang term for crazy, and 'tunes'. through the global success of these cartoons, the spelling 'looney' became cemented in the language as a colloquial adjective and noun, completely overshadowing its original genealogical roots as an irish surname.
Analysis
this word is a loanword and proper noun derivative, not productively formed from combinable morphemes in modern english. it originates from the surname 'looney', an anglicized form of the irish surname 'ó luanaigh', meaning 'descendant of luanaigh', with 'luanaigh' possibly derived from a term meaning 'warrior'.
Examples
that's a completely looney idea; it would never work.
don't listen to him, he's a bit of a looney.
the plot of the movie was delightfully looney.