What exactly is the Jinx Challenge? It’s a game full of shouting, giggling, and luck — or, if we want to actually get specific, it involves a duo attempting to say something in the same category at the same time. Jimmy Fallon and Margot Robbie played it last night on The Tonight Show. It’s a pretty cute game! And for some reason, the partners are required to wear red, conjoined gloves … but why? Think about it. Smooth moves, Fallon.