A term used to define a person, situation or emotion that is particularly fucking crazy, insane, weird, etc.
"That butt naked bitch outside digging in the trash is kookoo bananas."

"The molly I took at the club last night had me feeling kookoo bananas!"
"My coworkers are all going kookoo bananas after 6pm rolls up but we don't get off till 7..."
by The Kookoo 5 September 12, 2019
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