Top definition
A small, young, or otherwise innocent seeming individual who has suffered a severe mental break.
Cop 1: what’s the situation?

Cop 2: we got a kookaboo who’s locked himself inside. He’s afraid to come outside but he’s armed.
by August 04, 2018
A tall, afro-clad, pink socked, flambountly gay center of the BGNBA team. He goes to rich schools.
I thought we were seeing a basketball game not queer eye for the...oh wait, its Kookaboo.
by Guru R. December 20, 2004