Cheesy describes something that tries too hard to be impressive, touching, or funny but ends up feeling fake or overdone instead. When a movie has a cheesy ending where everything works out perfectly and everyone hugs while sappy music plays, it can feel artificial rather than genuine. A cheesy joke might make you groan instead of laugh because it's too obvious or corny.

Cheesy can also describe something cheap or low quality, like a horror movie with obviously fake monsters or a commercial with bad acting. Sometimes people enjoy things because they're cheesy: a wonderfully terrible song from the 1980s or a ridiculous superhero costume might be entertaining precisely because it's so over-the-top.

Not everyone agrees on what's cheesy. What feels sincere to one person might seem cheesy to another. The key is that something cheesy lacks authenticity, trying to create a feeling through formula rather than genuine emotion or effort.