Netflix and chill, but to the next level. It means you are going to climax with your partner while an IMAX is playing in the background. It's for adults and risk takers, while Netflix and chill is simply for children.
Person 1: "Hey, wanna come back to my place and watch Netflix and chill?"
Person 2: "Nah, I prefer to IMAX and climax. It insures optimum pleasure."
Similar to "Netflix and Chill". I.E. Binge watching movies and/or tv shows with the intention of at some point having sex. The main difference here is the underlying plan for both parties to reach orgasm at some point during coitus.