Earstranaut Share definition Flag Person responsible for launching small items, such as pebbles, off of extremely boingy ears. One day I want to be an earstranaut so that I can launch things off of peoples ears. Earstranaut by Gio Lai Moi August 20, 2010 0 0 Get merch Get the Earstranaut mug. Buy Now — $32.95 See more merch