Occurs when peeing late at night or early in the morning, (usually accompanied by an unfortunate boner) when the pee-er fails to turn on the light due to sleepiness - leading the pee-er to urinate in the darkness and get piss all over the floor.
Common responses include "fuck it" under the pee-ers' breath, but responses NEVER include cleaning the stray urine off the floor. (sometimes leaving the mother to clean it)
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."