Well, Nilion, a Cornish "pasty" is food...it's pastry, with filling inside, kind of like a pie but a different shape...and if you say someone "looks pasty", it just means they look a bit pale/ill.
Well actually a Cockney is someone born in a certain part of London. But to anyone form Southern England, a Cockney is anyone from London! To anyone from Northern England, a Cockney is someone from Southern England!