Short Meaning: Australian word meaning "Friend", can be used in the literal sense, but also as a general greeting towards, or addressing the attention of, an individual person, regardless of whether you have met before.
Long Meaning:
Short for Cobber in Australia. Cobber is a traditional Australian saying which is equivalent to the word "Mate", which itself in Australia means "Friend", but not literally 'Friend', as it can be used as a general greeting by anyone, regardless of whether you have ever met them before.
Cob / Cobber is mainly used today by "True Blue" Australians, (Long settled / Individuals of multi generational Australian heritage), however is rarely used now in major cities and has lost significant favour throughout Australia, with most people now using the word "mate" as the main greeting.
G'day Cob, how you been! (Good day buddy, how have you been)
What do you think of that, 'ey Cob! (What do you think of that hey buddy!)
Middle manager: "umm, if you could just get that done by COB, that would be terrrrrrrific."
Programmer: "sure, I'll get to that right away" ::what the hell, I guess I better do that right away...I'll look up COBB on Urban Dictionary::
Term used to describe the state of being usually referred to as grumpiness or sulking. Aka 'being in an arse', 'having a mard' or just basically being a miserable, pissed off so and so.
When sitting on the toilet, you reach over to tear off some toilet paper only to find that there's nothing but the cardboard tube, or cob, left on the roll.