Space Taco Share definition Flag A vagina that has been banged so many times it looks like it came from outer space. UFO = unidentified fucked object Dude, that chick had a space taco... I wasn't going near it. Space Taco by annie walnuts August 25, 2008 0 0 Get merch Get the Space Taco mug. Buy Now — $32.95 See more merch