dude she's 12 Share definition Flag Used to explain why a 20 year old can't have a certain girlfriend. "OMG I met this awesome girl online!" "Dude she's 12." dude she's 12 by Dread Pirate Slasher September 7, 2007 0 0 Get merch Get the dude she's 12 mug. Buy Now — $32.95 See more merch