Dirty Katja Share definition Flag A dirty Katja is when the female starts to talk about astrology or her feelings during heavy sexual intercourse. "Man, she really pulled a Dirty Katja on me last night!" Dirty Katja by Kermitcansuckmyclit April 14, 2020 0 0 Get merch Get the Dirty Katja mug. Buy Now — $32.95 See more merch