Shitfit fantastic Share definition Flag A humorous or joking way to say good. May be sarcastic. Person 1: How was your day? Person 2: Shitfit fantastic!Person 1: Ha same Shitfit fantastic by yjhger;g;kw February 18, 2013 0 0 Get merch Get the Shitfit fantastic mug. Buy Now — $32.95 See more merch