An iSore is an old version of Apple's iPod. It is used in reference to the old, black and white screened, large iPods that first came out a few years ago.
Frank: Man, check out my new iPod touch! Color touch screen, cool games, wireless connectivity, huge hard drive!
Bill: Shut up man! I know your only saying that because I have this huge, bricky, black and white 4 year old piece of shit iSore!
