(1) a feeling of disorientation or craziness usually caused by the excessive intake of disco biscuits, mexican speedballs, or wiffle dust
(2) the name of a nude breasted indonesian tribe that belives in voodoo rituals
(3) a feeling that drives you to become a spastic, screaming orange bird.
(1) Nikolai was so kookoo yesterday; he thought gravity was changing and climbed on top of the nearest bus stop.
(2) One of the kookoo clan's most famous rituals is the sacrifice of a puppy to please the God, Primus.
(3) I'm kookoo for cocoa crack.