(noun) a relationship which is so full of drama that it comes out in public, it is high-def sitcom quality. When this happens there's nothing to do but grab a bag of popcorn and watch the fireworks.
"At the party last night Mark and Randa started fighting about her flirting with some guy there. It's so ridiculous."
"Yeah, they've got a total popcorn relationship. What you've gotta do is set up seats and enjoy the show."