21 questions is a game you play when you are on a dating web site and want to make yourself sound a lot better to the person you're trying to hook up with.
Hey, let's play 21 questions so I can lie about myself to you!
EBK stands for "Elite Ball Knowledge." 1 In internet slang, "ball knowledge" originally referred to a deep understanding of football/soccer or basketball, but it has evolved into a broader term for having a highly sophisticated, deep, or niche understanding of any specific topic (such as music, movies, or subcultures).
Person A: "That scene was a direct homage to an unreleased 1982 Japanese indie film."
Person B: "Wow, EBK."