geto rat Share definition Flag a phrase used to describe an action that is extremely rude or shady Dude1: Did you just see what he did? He was feeling up on my girlfriend while I was out of the room!Dude2: Geto Rat! geto rat by donsiam July 16, 2009 0 0 Get merch Get the geto rat mug. Buy Now — $32.95 See more merch