An adjective "cheesy" often describes something that's overly sentimental or emotional. You might say a romantic comedy with a sappy ending is cheesy.
When we use the word "cheesy," it usually means someone thinks something is too much, too obvious, or just plain silly. For example, if you watch an old movie and the characters declare their love in a ridiculously over-the-top way, you might call that scene cheesy. The same goes for music - if a song has super cheesy lyrics about being in love, people might not take it seriously. On the other hand, some people actually enjoy cheesy things, like bad puns or silly humor. It all comes down to personal taste.
Of or relating to cheese.
Example: This sandwich is full of cheesy goodness.
