At least John Cleese clearly mentions "I have a bridge to sell you" in the video in his tweet. That saying is a reference to the scams of George C. Parker who

At least John Cleese clearly mentions "I have a bridge to sell you" in the video in his tweet. That saying is a reference to the scams of George C. Parker who "sold" the Brooklyn Bridge a number of times to gullible people, and from the context of the video it is clear he is referring to that.