adjective, kook·i·er, kook·i·est. Slang. of, like, or pertaining to a kook; eccentric, strange, or foolish.

What does the word Kookiness mean?

adjective. Someone who is kooky is slightly strange or eccentric, but often in a way which makes you like them. [informal]

Is it Cooky or kooky?

As adjectives the difference between cooky and kooky

is that cooky is while kooky is eccentric, strange, or foolish; crazy or insane.