Originally from a children's tv programme, a boohbah is a freaky alien type creature with a cupie doll's head. There are 5 of them, each in a different colour (blue, orange, yellow, red, purple). They emit squeaky high pitched sounds, and really do your head in when recovering from a big night out.
The Boohbah's are making me nauseas
I turned the tv off because the Boohbahs came on.