Egger Share definition Flag An annoying or idiotic person. Usually does not understand simple things and has a large forehead. Ellie is such an Egger. When I said my house was on a hill, she thought I meant IN the hill! Egger by MassivePeen5 June 23, 2020 0 0 Get merch Get the Egger mug. Buy Now — $32.95 See more merch