CHEESY is one of those words that we use all the time, but have a hard time explaining. We use it mostly in reference to people. I once worked for this guy who was an asshole, but he had taken some course on How to Manage People Effectively, so when you called his name, he would face you with this big, phony smile, thinking he was being charming and professional. When the owners of the business would come in, he would put on that same smile, walk a certain way, use bombastic words, and adopt ridiculous mannerisms. He was so CHEESY that even the owners of the business would look at us and roll their eyes. Similarly, a letter can be cheesy if it's too wordy and affected, or overly sentimental in a laughable way. But if you want to see the quintessence of cheesiness, watch a move called Office Space and pay attention to the boss. He is cheesiness personified!