The Grassy Knoll Share definition Flag the area of your body inbetween your asshole and your penis/vagina Man Jackie sure loved it when i rubbed my lone gun man up and down her Grassy Knoll The Grassy Knoll by eric February 23, 2004 0 0 Get merch Get the The Grassy Knoll mug. Buy Now — $32.95 See more merch