Hi! This word is particularly difficult to translate in my experience. We usually use it in a situation that is silly, cliché, or unoriginal. The connotation is one of light criticism (not very harsh). I will give examples. -The plot of that romance movie was cliché with lots of corny moments between the lovers. -My dad is always making corny jokes that he thinks are hilarious. -He showed me some of his ideas to propose to my sister, but they were so corny with roses, music, and a very public declaration of love. I helped him come up with a better plan. -That bakery advertisement with the dancing doughnut was so corny, but it did the job because now I am craving pastries. -She asked me to prom by writing a romantic poem to me and reading it in front of the class. It was so corny, but I ended up saying yes. -I had a corny dream last night that we got married on the beach and rode off on horses into the sunset. -The characters from that children's movie dance around with corny moves and sing silly songs.