rusty cheeseburger Share definition Flag The Act of fisting a girl in her ass with a cheeseburger then eating it. I'm hungry and horny, lets have ourselves a rusty cheeseburger rusty cheeseburger by JustTooChewy August 1, 2015 0 0 Get merch Get the rusty cheeseburger mug. Buy Now — $32.95 See more merch