e2yo Share definition Flag eternal 2-year old Guy 1: Dude, I just realized that every time my boss tells me something, I say something back, whether it's necessary or not! Guy 2: Dude, you're an e2yo. e2yo by ashelby August 5, 2008 0 0 Get merch Get the e2yo mug. Buy Now — $32.95 See more merch