A dark variety of sandstone, much used for building purposes.
A row house built of brownstone; reddish brown in color.
A reddish brown sandstone; used in buildings.
He was in the West Nineties, a longblock of brownstone rooming houses.
(William S. Burroughs, 'The Junky's Christmas')
Means Heroin and is also a famous song by Guns N Roses on their debut album "Appetite for Destruction". When they are saying "Dancing with Mr. Brownstone" it means they are "Shootin Heroin"
"We Been Dancin' with Mr. Brownstone He's been knockin he won't leave me alone"
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."