Fat Taco Share definition Flag A vagina which has a swolen, or very fat set of lips. Usually the cause of camel toe, when tight clothes are worn. After i pulled down her panties, she had a shaved fat taco! Fat Taco by Jubba55 October 14, 2008 0 0 Get merch Get the Fat Taco mug. Buy Now — $32.95 See more merch