Kookiness occurs in social/communal settings, and is marked by a lack of regard for common courtesy, with extreme self-delusion in which the kook fancies him/herself as some sort of minor celebrity. Also includes outrageously foward courting rituals, obnoxiously loud car-stereo syndrome, and coveting of material objects e.g. jewlery and basketball shoes.
Kookiness is rooted in compeition; to be the loudest, the flyest, the least respecting of civilized living.
Note "kooky" is not to be held in the particular verbal domain of any particular race, ethnicity, or group. It's not meant to monger hate, but rather make light of a depressing social circumstance-a much preferable, less hateful option to that OTHER word...
"Say GUHRRRLL, I bout to SLIDE UP ON DAT, YEE! OOO, OUCH! I'ma FREAK YOU, AHH!
Driver's dreadlocks are shaking as he yells, completely ignoring the road ahead for a full five seconds.
Passing onlooker #1: *Shakes head, discouragingly*
Passing onlooker #2: "That's just downright kooky"