As nouns the difference between loony and looby
is that loony is an insane or very foolish person while looby is an awkward or clumsy person.
As an adjective loony
is insane.
loony
English
Alternative forms
* (insane) luny, looney
Adjective
(er)
(of a person) Insane.
(of a thing) Very silly, absurd.
Synonyms
* See also
Noun
(loonies)
An insane or very foolish person.
looby
English
Noun
(loobies)
an awkward or clumsy person