A word used in place of crap, shit, or any other words which usually mean bad.
It supposedly originates from the fact that when a word is ~ish (The man was tall....ish. His skin was yellowish in colour, for example), its only partially the full meaning of the word its used with. Tall being taller than tallish, and yellow being more yellow than yellowish.
Therefore rubbish, without the ish, would be rubb. Rubbness of the highest magnitude if you will.
Typically, a person with ginger hair, will have the *ginger face*. Its basically the face where even if they were hairless you could look at them and say, yep, they're ginger. Characterised by pale skin and many freckles. Eyebrows play a factor also.
However, it isn't just ginger people who have this face. Those unlucky enough to have the *ginger face* and have black hair for example, can also be at the tail end of the "Fuck off ginger features!" insult.
Many regard this as a very bad trait, especially if hair doesnt match.
Oh my god did you just see that guy? Totally had a ginger face.