It means people or things from Greece, or relating to, or pertaining to Greece.
e.g. Hercules, Feta Cheese, Sodomy.
( Dr Preference AjcuiVd289, Fri 10 Jul 2009, 17:12, archived)

I refute your claim that Baklava was invented by the greeks.
Don't get me wrong, they're happy to eat it, much like the rest of the middle east, but to say they invented it? Woooh neally, I doubt that very much.
( G/PP 💩💩💩💩💩&#128, Fri 10 Jul 2009, 17:16, archived)