Spank you Share definition Flag Spank you, a term used to show appreciation towards someone. A more fun way to say "thank you." "Pass the salt please." *salt is passed* "Spank you.", "Spanks for picking me up from the mall." Spank you by RoberTheLion April 20, 2010 0 0 Get merch Get the Spank you mug. Buy Now — $32.95 See more merch