Jagger Micknasty Share definition Flag It's usually when you walk in a public rest room and you see shit all on the toilet seat you walk in to public rest room you open the stall door and realize you see shit on the toilet you say to yourself damn! "Jagger Micknasty" Jagger Micknasty by corvo21 May 12, 2011 Get the Jagger Micknasty mug.