dirty caitlin Share definition Flag It is the same as a Dirty Rodriguez, but with mashed potatoes used as lube to give it an Irish flair. She told me to bring the sour cream and butter tonight, sounds like it’s Dirty Caitlin time. dirty caitlin by Theyreallgoingtolaughatyou February 26, 2019 0 0 Get merch Get the dirty caitlin mug. Buy Now — $32.95 See more merch