Not worth the paper it's written/printed on phrase
(Of an agreement or formal document) having no legal validity, or because one of the parties involved has no intention of performing what they promised.
They signed a year's lease on this place, but it's not worth the paper it's written on.
That contract isn't worth the paper it's printed on now because you has infringed the terms and conditions.
Used to express one's suspicion that something that has been achieved was not worth all the effort or sacrifice made
To mark a surface by pressing letters/names/etc into it.
People are always inclined to flatter or please a rich man by laughing at his joke which may not be a very good one.
Everyone at the table always flatter the boss by praising his humor. A rich man's jokes are always funny.