It starts with Jimmy Fallon’s repeated “Captcha” description: “those squiggly words you have to type in before you buy tickets to concerts and stuff.”
(Which I assume refers to him potentially doing something risqué behind closed doors, while ordering concert tickets.)
The wording changes very slightly each time, but the gist is entirely the same.
Then, after the picture is shown, and the audience has chuckled over the randomly generated words, Fallon brings out the other line he constantly uses, which involves him calling out, “Honey, I’m about to get those [pop music star] tickets.