mexican U-haul Share definition Flag The art of trying to insert ones head into the anus of your partner during intercourse. Yo Jim, I just did a mexican U-haul on that chick and now my face smells like tacos! mexican U-haul by B-Unit loo March 29, 2009 0 0 Get merch Get the mexican U-haul mug. Buy Now — $32.95 See more merch