yet anutha lost soul

Ok, so i have a song in my head. Well, its more like a line, and its doin my head in.
I THINK it is something along the lines of "The boy's sick, he's insane, he's crazy as a coconut" but MY search isnt doin me any favours. Id 1st thort it was the basemnt jaxx but thats bringing me nothing.
So if anyone out there could please help me, it would be awesome
Cheers

Could it be:

The Avalanches - Frontier Psychiatrist

That boy needs therapy
Lying down on the couch, what does that mean?
You're a nut! You're crazy in the coconut!
What does that mean? That boy needs therapy
I'm gonna kill you, that boy needs therapy