Shady Katie Share definition Flag The girl that tries to act real cute in front of your man. Laughing too hard at his jokes, batting her eyes, wink face emojis, touching his shoulder. Don’t leave your man with her, she’s a Shady Katie.Keep an eye on that shady Katie. Shady Katie by Facestomper23 February 11, 2023 Get the Shady Katie mug.