Watch this, first, so you understand what I'm talking about below:
John and I were discussing what countries we'd like to visit. John would like to go to Japan. I mentioned Sweden, or perhaps Germany...
Joey said, "Because you want a Snickers?"
He's seen the commercial maybe 4 or 5 times. When John watches football, it comes on from time to time. I think it's brilliant and hilarious (and a little exemplary of the insidiousness of advertising) that he connected our conversation to this commercial!