My fellow Buckeye, Alice from Ohio  has been teaching up some slang.  She wrote:

More American Slang Cheesy (adj.): Cheap, tacky. "A cheesy pick-up line", "A cheesy song", etc.

A pick-up line is something that you say to someone so that they become interested in you romantically.

The cheesiest pick-up line that I've ever heard someone actually use is

Has anyone ever told you that you have beautiful eyes?

What is the cheesiest pick-up line that you have ever heard?

Please remember that our sensitive ears can't handle overt sexuality. :)