Image source: 1, 2.
Example sentences from the web:
- My sister said the card was corny, but I thought it was sweet.
- I don’t wanna sound corny, but it’s nice, you and I having one-on-one time.
- I mean, it sounds corny, but my job means more to me than just a career.
- I know it sounds corny, but we made a big difference in that person’s life.