Szechuan Sauce Share definition Flag Szechuan Sauce is a sauce that used to be in Mcdonalds. Now it's used for humor in Rick and Morty. "You got the Szechuan Sauce, Morty?" - Rick Szechuan Sauce by don't read my name bitch May 31, 2018 0 0 Get merch Get the Szechuan Sauce mug. Buy Now — $32.95 See more merch