The lesson
Use a five-second slot for one pun and one brand character, and don't add anything else.
The spot, "Do your lesson, no buts.", shows a huge green Duo from behind with a smaller Duo looking up at it, and the lowercase line "do your duolingo" in green on white at the left. The description jokes "Need another look at my 🍑 from the super bowl?!" and tags #Buttception.
Don't copy the butt joke; it relies on the owl character and the brand's tolerance for silliness. Keep the discipline of one joke, one line, one recognisable character.