Domino Sugar sued Domino's Pizza for trademark infringement. For a while, they changed their name to Pizza Dispatch. The courts eventually ruled that the products were so dissimilar that no confusion in the marketplace was likely to occur, therefore no infringement. A vaguely similar phrase describing a fictional product would probably be considered non-infringing as well, but think geek does not have the kind of money to defend itself like Domino's did. It is a shame that frivolous cease and desist letters and lawsuits aren't a criminal offense.