For those of you in the frame of mind in which one likes to overanalyse subtle shades of meaning, here are the actual definitions of three words often used and sometimes used interchangeably.
Cheesy: "Inferior or cheap; chintzy."
Campy: "Providing sophisticated amusement by virtue of having artificially (and vulgarly) mannered or banal or sentimental qualities."
Corny: "Old-fashioned, trite, or lacking in subtlety."
On a side note, I find the Dutch word for Dictionary rather interesting: "woordenboek" -- sounds like 'word-book,' doesn't it? And in the title of this post we have the German and Swedish versions.