Isn't It Ironic? Rest assured, this game contains no ironic t-shirts or mustaches. Here, irony is defined as an "incongruous yet appropriate juxtaposition that highlights the discordant, revelatory nature of the universe." Deep. Play along as host Ophira Eisenberg asks contestants about certain ironic situations, like how the best-selling holiday song of all time, "White Christmas," was written by Irving Berlin--who was Jewish.