this is when you get more scatty than tom staley

woman of small or no mental capacity.

Doobin refers to the act of smoking a 'doob' or 'spliff'. Scatty refers to the said doob being unsatisfactory or of bad quality. So scatty doobin means smoking a low quality spliff.

A real dirty scatty bitch / norse, can be used against anyone who has a slight discolouration to skin or clothes, usualy on the wiffy side, needless to say there's a few scatty bitches out there.

A dirty/nasty pussy

When a person, place, or situation get unnecessarily wild.

Worst fool